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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.55% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 84.6% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-07-26 00:00Z5 YR AGO
- Last updated
- 2024-08-03 22:55Z2 YR AGO
- Reserved
- 2021-04-15
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-190Integer Overflow or WraparoundBase
- Data version
- 5.1
- Document digest
- 21266c83dbee03c4c8c153c6d0fef8087d40c82fccddf986775423b5ebaff144
05 Affected products
06 References
- github.comhttps://github.com/Exiv2/exiv2/issues/1530
- www.debian.orgDSA-4958https://www.debian.org/security/2021/dsa-4958
- lists.fedoraproject.orgFEDORA-2021-399f869889https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
- lists.fedoraproject.orgFEDORA-2021-cbaef8e2d5https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
- lists.debian.org[debian-lts-announce] 20210830 [SECURITY] [DLA 2750-1] exiv2 security updatehttps://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
- security.gentoo.orgGLSA-202312-06https://security.gentoo.org/glsa/202312-06
07 Fixed in
AlmaLinux 8
- compat-exiv2-026 Fixed in 0.26-6.el8
- exiv2 Fixed in 0.27.4-5.el8
- exiv2-devel Fixed in 0.27.4-5.el8
- exiv2-doc Fixed in 0.27.4-5.el8
- exiv2-libs Fixed in 0.27.4-5.el8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- compat-exiv2-026 Fixed in 0.26-6.el8
- exiv2 Fixed in 0.27.4-5.el8
- exiv2-devel Fixed in 0.27.4-5.el8
- exiv2-doc Fixed in 0.27.4-5.el8
- exiv2-libs Fixed in 0.27.4-5.el8
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- exiv2 Fixed in 0.27.3-3.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- exiv2 Fixed in 0.27.3-3.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- exiv2 Fixed in 0.27.3-3.1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.