🛡️ CVE-2023-4508 — gerbv

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. 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:N/UI:R/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: None — an unauthenticated stranger can try it.
• User interaction: Required — someone has to click, open or visit something.
• 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

CVE-2023-4508 is classified as CWE-824: Access of Uninitialized Pointer. The product accesses or uses a pointer that has not been initialized.

Affected software

CVE-2023-4508 is recorded against 1 package.

• gerbv (from 2.4.0 up to 2.10.0)

Timeline and source

Published on 24 August 2023 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

cve.mitre.org
github.com
github.com
cve.mitre.org
github.com
github.com

Other advisories for this package

gerbv has other advisories on record. If you are patching this one, these are worth checking on the same host:

• USN-6760-1 (published 30 Apr 2024)
• DLA-3593-1 (published 30 Sep 2023)
• UBUNTU-CVE-2023-4508 (published 24 Aug 2023)
• DEBIAN-CVE-2023-4508 (published 24 Aug 2023)
• USN-6209-1 (published 7 Jul 2023)
• DSA-5306-1 (published 27 Dec 2022)
• DLA-3210-1 (published 28 Nov 2022)
• MGASA-2022-0260 (published 13 Jul 2022)

Same weakness in other software

These advisories are the same class of weakness (CWE-824: Access of Uninitialized Pointer) in other software:

• CVE-2026-16409 (7.5 High, published 21 Jul 2026)
• CVE-2022-46280 (9.8 Critical, published 13 Jul 2026)
• CVE-2022-44451 (9.8 Critical, published 1 Jul 2026)
• CVE-2022-42885 (9.8 Critical, published 1 Jul 2026)
• CVE-2026-53042 (5.5 Medium, published 24 Jun 2026)
• CVE-2026-47908 (7.8 High, published 9 Jun 2026)
• CVE-2026-42959 (7.5 High, published 20 May 2026)
• CVE-2026-39458 (7.5 High, published 13 May 2026)

CVE-2023-4508 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References