An integer underflow bug in the process_EXIF function of the exif.c file of jhead 3.00…
Priority LOW 27CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
An integer underflow bug in the process_EXIF function of the exif.c file of jhead 3.00 raises a heap-based buffer over-read when processing a malicious JPEG file, which may allow a remote attacker to cause a denial-of-service attack or unspecified other impact.
Why it matters now
EPSS 0.01131 66th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
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:jhead_project:jhead:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Jhead Project |
- cpe:2.3:a:jhead_project:jhead:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Jhead Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2018-6612
- 2026-10-03 Alias added: GHSA-73qf-rvc2-8ggj
References
More Jhead Project Jhead vulnerabilities
- TI-2022-11226 Matthias-Wandel/jhead jhead 3.06 is vulnerable to Buffer Overflow via shellescape()… CVSS 3.1CRITICAL 9.8
- TI-2025-28699 jhead v3.08 was discovered to contain a heap-use-after-free via the ProcessFile function at jhead.c. CVSS 3.1HIGH 7.8
- TI-2022-20137 Jhead 3.06.0.1 allows attackers to execute arbitrary OS commands by placing them in a… CVSS 3.1HIGH 7.8
- TI-2020-16030 Heap-buffer-overflow in jhead CVSS 3.1MEDIUM 6.1
- TI-2018-11874 The ProcessGpsInfo function of the gpsinfo.c file of jhead 3.00 may allow a remote… CVSS 3.0HIGH 7.8
- TI-2018-12214 The ProcessGpsInfo function of the gpsinfo.c file of jhead 3.00 may allow a remote… CVSS 3.0HIGH 7.8
Sources
- CVE-2018-6612 · CVE Program
- CVE-2018-6612 · NVD
- FIRST EPSS
- GHSA-73qf-rvc2-8ggj · GitHub Advisory Database · CC BY 4.0
- CVE-2018-6612 · Red Hat security data · CC BY 4.0
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