CVE-2024-26462

Publication date 29 February 2024

Last updated 3 March 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Kerberos 5 (aka krb5) 1.21.2 contains a memory leak vulnerability in /krb5/src/kdc/ndr.c.

Read the notes from the security team

Status

Package Ubuntu Release Status
krb5 24.10 oracular
Not affected
24.04 LTS noble
Fixed 1.20.1-6ubuntu2.5
23.10 mantic Ignored end of life, was needed
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Ignored end of ESM support, was needed

Notes

mdeslaur

per upstream: "The ndr.c leak also affects an encoding function, and triggers if the input contains invalid UTF-8. This one might be triggerable by a request (though it may require elevated privilege), but I would not have requested a CVE for it myself."

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
krb5

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H