CVE catalog

CVE-2024-2698

freeipa affected and fixed versions

A vulnerability was found in FreeIPA in how the initial implementation of MS-SFU by MIT Kerberos was missing a condition for granting the "forwardable" flag on S4U2Self tickets. Fixing this mistake required adding a special case for the check_allowed_to_delegate() function: If the target service argument is NULL, then it means the KDC is probing for general constrained delegation rules and not checking a specific S4U2Proxy request. In FreeIPA 4.11.0, the behavior of ipadb_match_acl() was modified to match the changes from upstream MIT Kerberos 1.20. However, a mistake resulting in this mechanism applies in cases where the target service argument is set AND where it is unset. This results in S4U2Proxy requests being accepted regardless of whether or not there is a matching service delegation rule.

Severity: High · CVSS 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Jun 10, 2024, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.67% · Oct 27, 2026

Projects and upstream resources

[freeipa][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "freeipa",
      "status": "fixed",
      "release": "sid",
      "version": "4.13.1-1"
    },
    {
      "name": "freeipa",
      "status": "fixed",
      "release": "trixie",
      "version": "4.12.4-1"
    },
    {
      "name": "freeipa",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "4.9.11-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1077682,
      "name": "freeipa",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": "4.12.2-1"
    },
    {
      "bug": 1077682,
      "name": "freeipa",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "4.12.2-1"
    },
    {
      "bug": 1077682,
      "name": "freeipa",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": ""
    }
  ],
  "distribution_packages": []
}

[Debian bug #1077682]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[freeipa-client]Unknown
Source package: [freeipa]
Details (2)
- 4.9.11-1 · amd64 · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
- 4.9.11-1 · arm64 · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
[freeipa-client-epn]Unknown
Source package: [freeipa]
Details (2)
- 4.9.11-1 · amd64 · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
- 4.9.11-1 · arm64 · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
[freeipa-client-samba]Unknown
Source package: [freeipa]
Details (2)
- 4.9.11-1 · amd64 · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
- 4.9.11-1 · arm64 · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
[freeipa-common]Unknown
Source package: [freeipa]
Details (2)
- 4.9.11-1 · all · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
- 4.9.11-1 · all · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
[python3-ipaclient]Unknown
Source package: [freeipa]
Details (2)
- 4.9.11-1 · all · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
- 4.9.11-1 · all · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
[python3-ipalib]Unknown
Source package: [freeipa]
Details (2)
- 4.9.11-1 · all · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12
- 4.9.11-1 · all · bookworm
  Affected
  dsa · freeipa · debian · bookworm; dsa · freeipa · debian · 12

[Debian 13 (Trixie)]

[freeipa-client]Unknown
Source package: [freeipa]
Details (2)
- 4.12.4-1 · amd64 · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
- 4.12.4-1 · arm64 · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
[freeipa-client-epn]Unknown
Source package: [freeipa]
Details (2)
- 4.12.4-1 · amd64 · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
- 4.12.4-1 · arm64 · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
[freeipa-client-samba]Unknown
Source package: [freeipa]
Details (2)
- 4.12.4-1 · amd64 · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
- 4.12.4-1 · arm64 · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
[freeipa-common]Unknown
Source package: [freeipa]
Details (2)
- 4.12.4-1 · all · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
- 4.12.4-1 · all · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
[python3-ipaclient]Unknown
Source package: [freeipa]
Details (2)
- 4.12.4-1 · all · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
- 4.12.4-1 · all · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
[python3-ipalib]Unknown
Source package: [freeipa]
Details (2)
- 4.12.4-1 · all · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13
- 4.12.4-1 · all · trixie
  Fixed · Fixed: 4.12.2-1
  dsa · freeipa · debian · 13

Observed: Oct 27, 2026, 3:32:26 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]