Gifsicle v1.9.3 was discovered to contain a heap buffer overflow via the ambiguity_error component at /src/clp.c.
Priority HIGH 69CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Gifsicle v1.9.3 was discovered to contain a heap buffer overflow via the ambiguity_error component at /src/clp.c.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00314 24th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-36193
- 2026-10-03 Alias added: GHSA-4f2r-gxmm-56p6
References
More Lcdf Gifsicle vulnerabilities
- TI-2023-24687 gifsicle-1.94 was found to have a floating point exception (FPE) vulnerability via resize_stream at src/xform.c. CVSS 3.1HIGH 7.8
- TI-2017-14640 Gifsicle gifview 1.89 and older is vulnerable to a use-after-free in the read_gif… CVSS 3.0CRITICAL 9.8
- TI-2017-13321 A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote… CVSS 3.0HIGH 7.8
- TI-2020-13698 The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference. CVSS 3.1HIGH 7.5
- TI-2023-24009 Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2023-36193 · CVE Program
- CVE-2023-36193 · NVD
- FIRST EPSS
- GHSA-4f2r-gxmm-56p6 · GitHub Advisory Database · CC BY 4.0
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