What’s Vulnerable › Vulnerabilities
CVE-2021-31292
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.6% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-07-26 · updated 2026-06-17
- Weakness: CWE-190
Description
An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.
Affected products
- Debian Linux: 9.0, 10.0
- exiv2: 0.27.3
- Fedoraproject Fedora: 33, 34
References
- https://github.com/Exiv2/exiv2/issues/1530
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
- https://security.gentoo.org/glsa/202312-06
- https://www.debian.org/security/2021/dsa-4958
- https://github.com/Exiv2/exiv2/issues/1530
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
- https://security.gentoo.org/glsa/202312-06
- https://www.debian.org/security/2021/dsa-4958
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