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PYSEC-2013-31
Vulnerability from pysec - Published: 2013-09-30 21:55 - Updated: 2021-08-27 03:22
VLAI
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Impacted products
| Name | purl | pyopenssl | pkg:pypi/pyopenssl |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pyopenssl",
"purl": "pkg:pypi/pyopenssl"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.13.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.10",
"0.11",
"0.12",
"0.13",
"0.6",
"0.7",
"0.8",
"0.9"
]
}
],
"aliases": [
"CVE-2013-4314",
"GHSA-6748-36qp-fx6r"
],
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \u0027\\0\u0027 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "PYSEC-2013-31",
"modified": "2021-08-27T03:22:17.495539Z",
"published": "2013-09-30T21:55:00Z",
"references": [
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "ADVISORY",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
},
{
"type": "ADVISORY",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-6748-36qp-fx6r"
}
]
}
BREW-GGSHIELD-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 16:50 – Updated: 2026-09-10 00:00 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.4.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "ggshield",
"purl": "pkg:brew/ggshield"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.53.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.4.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.4.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-ggshield-CVE-2013-4314",
"modified": "2026-09-10T00:00:09Z",
"published": "2026-08-13T16:50:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-LEXICON-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:02 – Updated: 2026-09-10 00:19 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.2.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "lexicon",
"purl": "pkg:brew/lexicon"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.25.2_2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.2.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.2.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-lexicon-CVE-2013-4314",
"modified": "2026-09-10T00:19:42Z",
"published": "2026-08-13T17:02:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-MAGIC-WORMHOLE-CVE-… (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:10 – Updated: 2026-09-10 00:28 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.3.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "magic-wormhole",
"purl": "pkg:brew/magic-wormhole"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.24.0_3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.3.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.3.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-magic-wormhole-CVE-2013-4314",
"modified": "2026-09-10T00:28:25Z",
"published": "2026-08-13T17:10:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-OCI-CLI-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:19 – Updated: 2026-09-10 00:39 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.4.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "oci-cli",
"purl": "pkg:brew/oci-cli"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.90.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.4.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.4.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-oci-cli-CVE-2013-4314",
"modified": "2026-09-10T00:39:08Z",
"published": "2026-08-13T17:19:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-OPENSTACKCLIENT-CVE… (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:24 – Updated: 2026-09-10 00:45 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.4.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "openstackclient",
"purl": "pkg:brew/openstackclient"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "10.2.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.4.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.4.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-openstackclient-CVE-2013-4314",
"modified": "2026-09-10T00:45:16Z",
"published": "2026-08-13T17:24:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-POCSUITE3-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:28 – Updated: 2026-09-10 00:58 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.2.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "pocsuite3",
"purl": "pkg:brew/pocsuite3"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0_10"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.2.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.2.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-pocsuite3-CVE-2013-4314",
"modified": "2026-09-10T00:58:01Z",
"published": "2026-08-13T17:28:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-PROWLER-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:29 – Updated: 2026-09-10 00:58 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.4.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "prowler",
"purl": "pkg:brew/prowler"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.37.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.4.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.4.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-prowler-CVE-2013-4314",
"modified": "2026-09-10T00:58:53Z",
"published": "2026-08-13T17:29:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-SCOUTSUITE-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:34 – Updated: 2026-09-10 01:11 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.4.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "scoutsuite",
"purl": "pkg:brew/scoutsuite"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.14.0_16"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.4.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.4.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-scoutsuite-CVE-2013-4314",
"modified": "2026-09-10T01:11:31Z",
"published": "2026-08-13T17:34:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-SCRAPY-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:34 – Updated: 2026-09-10 01:11 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.4.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "scrapy",
"purl": "pkg:brew/scrapy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.17.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.4.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.4.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-scrapy-CVE-2013-4314",
"modified": "2026-09-10T01:11:46Z",
"published": "2026-08-13T17:34:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
BREW-SHOWCERT-CVE-2013-4314 (GHSA-6748-36QP-FX6R)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:34 – Updated: 2026-09-10 01:12 – Source website
VLAI
Summary
PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pyopenssl",
"resource_purl": "pkg:pypi/pyopenssl@26.3.0",
"upstream_fixed_in": "0.13.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "showcert",
"purl": "pkg:brew/showcert"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.4.16_2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pyopenssl@26.3.0",
"name": "pyopenssl",
"resource": "pyopenssl",
"strategy": "registry",
"subject_version": "26.3.0"
}
]
},
"details": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "BREW-showcert-CVE-2013-4314",
"modified": "2026-09-10T01:12:52Z",
"published": "2026-08-13T17:34:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4314"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1005325"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml"
},
{
"type": "WEB",
"url": "https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2013/dsa-2763"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2013/09/06/2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1965-1"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name",
"upstream": [
"GHSA-6748-36qp-fx6r",
"CVE-2013-4314",
"PYSEC-2013-31"
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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