giflib v5.2.1 was discovered to contain a segmentation fault via the component getarg.c.
Priority MEDIUM 58CWE-120Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-120 and the CVSS impact.
Summary
giflib v5.2.1 was discovered to contain a segmentation fault via the component getarg.c.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00346 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Deferred Red Hat: fix deferred
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:giflib_project:giflib:5.2.1:*:*:*:*:*:*:* | 5.2.1 | Vulnerable | Giflib Project |
- cpe:2.3:a:giflib_project:giflib:5.2.1:*:*:*:*:*:*:* Versions 5.2.1 Vulnerable ·Giflib Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-39742
- 2026-10-03 Alias added: GHSA-29c8-646j-hvw9
References
More Giflib Project Giflib vulnerabilities
- TI-2026-21378 Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a… CVSS 3.1HIGH 8.2
- TI-2024-30864 Giflib Project v5.2.2 is vulnerable to a heap buffer overflow via gif2rgb. CVSS 3.1MEDIUM 6.5
- TI-2016-02665 Multiple use-after-free and double-free vulnerabilities in gifcolor.c in GIFLIB 5.1.2… CVSS 3.0CRITICAL 9.8
- TI-2018-08211 The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as… CVSS 3.1HIGH 8.8
- TI-2018-08210 The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as… CVSS 3.1HIGH 8.8
- TI-2021-17617 A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote… CVSS 3.1HIGH 8.8
Sources
- CVE-2023-39742 · CVE Program
- CVE-2023-39742 · NVD
- FIRST EPSS
- GHSA-29c8-646j-hvw9 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-39742 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences