Distribution advisory
This page covers CVE-2024-25629 as tracked by Ubuntu, for the package c-ares. The fix is available in version 1.18.1-1ubuntu0.22.04.3; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- Attack vector: Local — a local account, shell or session on the host is needed.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: High — administrative rights are needed first.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: None.
- Integrity impact: None.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
UBUNTU-CVE-2024-25629 is classified as CWE-127: Buffer Under-read. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations prior to the targeted buffer.
Affected software
UBUNTU-CVE-2024-25629 is recorded against 1 package.
- c-ares (fixed in 1.18.1-1ubuntu0.22.04.3)
Timeline and source
Published on 23 February 2024 and last revised on 22 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
github.com (Report)
ubuntu.com (Advisory)
www.cve.org (Report)
Other advisories for this package
c-ares has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-127: Buffer Under-read) in other software:
