Distribution advisory
This page covers CVE-2022-23491 as tracked by Ubuntu, for the package ca-certificates. The fix is available in version 20211016ubuntu0.22.04.1; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality none, integrity high, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
- Attack vector: Network — reachable from anywhere that can route to the service.
- 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: Changed — a successful attack reaches components beyond the vulnerable one.
- Confidentiality impact: None.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: None.
Weakness class
UBUNTU-CVE-2022-23491 is classified as CWE-345: Insufficient Verification of Data Authenticity. Data is trusted without confirming it really came from the claimed source and was not altered.
Affected software
UBUNTU-CVE-2022-23491 is recorded against 1 package.
- ca-certificates (fixed in 20211016ubuntu0.22.04.1)
Timeline and source
Published on 7 December 2022 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
groups.google.com (Report)
github.com (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
www.cve.org (Report)
Other advisories for this package
ca-certificates 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-345: Insufficient Verification of Data Authenticity) in other software:
