Integer overflow in Exiv2
CVE-2021-31292
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Exiv2 — versions 0.27.3
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
References
- github.com/Exiv2/exiv2/issues/1530 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2021/dsa-4958 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/08/msg00028.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202312-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2021-31292?
- CVE-2021-31292 is a high-severity vulnerability in Exiv2, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2021-07-26.
- How severe is CVE-2021-31292?
- High severity. CVSS v3 base score is 7.5 out of 10.