oesa-2023-1794
Vulnerability from osv_openeuler
Published
2023-11-10 11:06
Modified
2026-08-06 11:06
Summary
squid security update
Details
Squid is a high-performance proxy caching server. It handles all requests in a single, non-blocking, I/O-driven process and keeps meta data and implements negative caching of failed requests.
Security Fix(es):
Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using --with-openssl are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.(CVE-2023-46724)
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.(CVE-2023-46728)
Severity
8.6 (High)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"squid-debuginfo-4.9-16.oe1.aarch64.rpm",
"squid-debugsource-4.9-16.oe1.aarch64.rpm",
"squid-4.9-16.oe1.aarch64.rpm"
],
"src": [
"squid-4.9-16.oe1.src.rpm"
],
"x86_64": [
"squid-4.9-16.oe1.x86_64.rpm",
"squid-debugsource-4.9-16.oe1.x86_64.rpm",
"squid-debuginfo-4.9-16.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP1",
"name": "squid",
"purl": "pkg:rpm/openEuler/squid\u0026distro=openEuler-20.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.9-16.oe1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"squid-4.9-16.oe1.aarch64.rpm",
"squid-debuginfo-4.9-16.oe1.aarch64.rpm",
"squid-debugsource-4.9-16.oe1.aarch64.rpm"
],
"src": [
"squid-4.9-16.oe1.src.rpm"
],
"x86_64": [
"squid-4.9-16.oe1.x86_64.rpm",
"squid-debuginfo-4.9-16.oe1.x86_64.rpm",
"squid-debugsource-4.9-16.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP3",
"name": "squid",
"purl": "pkg:rpm/openEuler/squid\u0026distro=openEuler-20.03-LTS-SP3"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.9-16.oe1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"squid-debugsource-4.9-20.oe2203.aarch64.rpm",
"squid-4.9-20.oe2203.aarch64.rpm",
"squid-debuginfo-4.9-20.oe2203.aarch64.rpm",
"squid-4.9-20.oe2203sp1.aarch64.rpm",
"squid-debugsource-4.9-20.oe2203sp1.aarch64.rpm",
"squid-debuginfo-4.9-20.oe2203sp1.aarch64.rpm",
"squid-debuginfo-4.9-20.oe2203sp2.aarch64.rpm",
"squid-4.9-20.oe2203sp2.aarch64.rpm",
"squid-debugsource-4.9-20.oe2203sp2.aarch64.rpm"
],
"src": [
"squid-4.9-20.oe2203.src.rpm",
"squid-4.9-20.oe2203sp1.src.rpm",
"squid-4.9-20.oe2203sp2.src.rpm"
],
"x86_64": [
"squid-4.9-20.oe2203.x86_64.rpm",
"squid-debugsource-4.9-20.oe2203.x86_64.rpm",
"squid-debuginfo-4.9-20.oe2203.x86_64.rpm",
"squid-debugsource-4.9-20.oe2203sp1.x86_64.rpm",
"squid-debuginfo-4.9-20.oe2203sp1.x86_64.rpm",
"squid-4.9-20.oe2203sp1.x86_64.rpm",
"squid-4.9-20.oe2203sp2.x86_64.rpm",
"squid-debugsource-4.9-20.oe2203sp2.x86_64.rpm",
"squid-debuginfo-4.9-20.oe2203sp2.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS",
"name": "squid",
"purl": "pkg:rpm/openEuler/squid\u0026distro=openEuler-22.03-LTS"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.9-20.oe2203sp2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"squid-4.9-20.oe2203sp1.aarch64.rpm",
"squid-debugsource-4.9-20.oe2203sp1.aarch64.rpm",
"squid-debuginfo-4.9-20.oe2203sp1.aarch64.rpm"
],
"src": [
"squid-4.9-20.oe2203sp1.src.rpm"
],
"x86_64": [
"squid-debugsource-4.9-20.oe2203sp1.x86_64.rpm",
"squid-debuginfo-4.9-20.oe2203sp1.x86_64.rpm",
"squid-4.9-20.oe2203sp1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS-SP1",
"name": "squid",
"purl": "pkg:rpm/openEuler/squid\u0026distro=openEuler-22.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.9-20.oe2203sp1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"squid-debuginfo-4.9-20.oe2203sp2.aarch64.rpm",
"squid-4.9-20.oe2203sp2.aarch64.rpm",
"squid-debugsource-4.9-20.oe2203sp2.aarch64.rpm"
],
"src": [
"squid-4.9-20.oe2203sp2.src.rpm"
],
"x86_64": [
"squid-4.9-20.oe2203sp2.x86_64.rpm",
"squid-debugsource-4.9-20.oe2203sp2.x86_64.rpm",
"squid-debuginfo-4.9-20.oe2203sp2.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS-SP2",
"name": "squid",
"purl": "pkg:rpm/openEuler/squid\u0026distro=openEuler-22.03-LTS-SP2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.9-20.oe2203sp2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "High"
},
"details": "Squid is a high-performance proxy caching server. It handles all requests in a single, non-blocking, I/O-driven process and keeps meta data and implements negative caching of failed requests.\r\n\r\nSecurity Fix(es):\r\n\r\n Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid\u0026apos;s patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.(CVE-2023-46724)\r\n\r\nSquid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid\u0026apos;s Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.(CVE-2023-46728)",
"id": "OESA-2023-1794",
"modified": "2026-08-06T11:06:14Z",
"published": "2023-11-10T11:06:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1794"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46724"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46728"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "squid security update",
"upstream": [
"CVE-2023-46724",
"CVE-2023-46728"
]
}
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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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