🛡️ USN-6168-2 — libx11 (CVE-2023-3138)
Description
libx11 vulnerability
USN-6168-1 fixed a vulnerability in libx11. This update provides
the corresponding update for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM,
and Ubuntu 18.04 ESM.
Original advisory details:
Gregory James Duck discovered that libx11 incorrectly handled certain
Request, Event, or Error IDs. If a user were tricked into connecting to a
malicious X Server, a remote attacker could possibly use this issue to
cause libx11 to crash, resulting in a denial of service.
Affected software
USN-6168-2 is recorded against 1 package.
- libx11 (fixed in 2:1.6.4-3ubuntu0.4+esm1)
Timeline and source
Published on 20 June 2023 and last revised on 29 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| libx11 | — | 2:1.6.4-3ubuntu0.4+esm1 |
References
Similar Threats
- Unknown CLSA-2025-1745588411
- Unknown CLSA-2025-1745529850
- Unknown CLSA-2025-1745270046
- Unknown ALSA-2024:2973
- Unknown ALSA-2024:2145
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