usn-6467-2
Vulnerability from osv_ubuntu
Published
2023-11-06 09:36
Modified
2026-04-27 14:11
Summary
krb5 vulnerability
Details
USN-6467-1 fixed a vulnerability in Kerberos. This update provides the corresponding update for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04.
Original advisory details:
Robert Morris discovered that Kerberos did not properly handle memory access when processing RPC data through kadmind, which could lead to the freeing of uninitialized memory. An authenticated remote attacker could possibly use this issue to cause kadmind to crash, resulting in a denial of service.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2023-36054",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "krb5-admin-server",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-gss-samples",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-k5tls",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-kdc",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-kdc-ldap",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-kpropd",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-locales",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-multidev",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-otp",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-pkinit",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "krb5-user",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libgssapi-krb5-2",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libgssrpc4",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libk5crypto3",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libkadm5clnt-mit11",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libkadm5srv-mit11",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libkdb5-9",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libkrad0",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libkrb5-3",
"binary_version": "1.17-6ubuntu4.4"
},
{
"binary_name": "libkrb5support0",
"binary_version": "1.17-6ubuntu4.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "krb5",
"purl": "pkg:deb/ubuntu/krb5@1.17-6ubuntu4.4?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.17-6ubuntu4.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.17-6",
"1.17-6ubuntu3",
"1.17-6ubuntu4",
"1.17-6ubuntu4.1",
"1.17-6ubuntu4.2",
"1.17-6ubuntu4.3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2023-36054",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "krb5-admin-server",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-gss-samples",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-k5tls",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-kdc",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-kdc-ldap",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-kpropd",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-locales",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-multidev",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-otp",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-pkinit",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "krb5-user",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libgssapi-krb5-2",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libgssrpc4",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libk5crypto3",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libkadm5clnt-mit12",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libkadm5srv-mit12",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libkdb5-10",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libkrad0",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libkrb5-3",
"binary_version": "1.19.2-2ubuntu0.3"
},
{
"binary_name": "libkrb5support0",
"binary_version": "1.19.2-2ubuntu0.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "krb5",
"purl": "pkg:deb/ubuntu/krb5@1.19.2-2ubuntu0.3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.19.2-2ubuntu0.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.18.3-6",
"1.18.3-7",
"1.19.2-0ubuntu1",
"1.19.2-1",
"1.19.2-2",
"1.19.2-2ubuntu0.1",
"1.19.2-2ubuntu0.2"
]
}
],
"aliases": [],
"details": "USN-6467-1 fixed a vulnerability in Kerberos. This update provides the\ncorresponding update for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu\n23.04.\n\nOriginal advisory details:\n\n Robert Morris discovered that Kerberos did not properly handle memory\n access when processing RPC data through kadmind, which could lead to the\n freeing of uninitialized memory. An authenticated remote attacker could\n possibly use this issue to cause kadmind to crash, resulting in a denial\n of service.\n",
"id": "USN-6467-2",
"modified": "2026-04-27T14:11:31Z",
"published": "2023-11-06T09:36:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6467-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-36054"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "krb5 vulnerability",
"upstream": [
"UBUNTU-CVE-2023-36054"
]
}
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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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