CVE-2021-31292: Buffer Overflow
First published: Mon Jul 26 2021(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/exiv2 | 0.25-4+deb10u2 0.25-4+deb10u4 0.27.3-3+deb11u2 0.27.3-3+deb11u1 0.27.6-1 | |
| Exiv2 Exiv2 | =0.27.3 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| redhat/exiv2 | <0.27.4 | 0.27.4 |
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Reference Links
- https://github.com/Exiv2/exiv2/issues/1530
- https://github.com/Exiv2/exiv2/commit/9b7a19f957af53304655ed1efe32253a1b11a8d0
- https://security-tracker.debian.org/tracker/CVE-2021-31292
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
- https://www.debian.org/security/2021/dsa-4958
- 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://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1990331
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1990332
- https://access.redhat.com/errata/RHSA-2021:4173
- https://access.redhat.com/errata/RHSA-2021:4319
- https://access.redhat.com/security/cve/cve-2021-31292
- https://bugzilla.redhat.com/show_bug.cgi?id=1990330
Frequently Asked Questions
What is the severity of CVE-2021-31292?
The severity of CVE-2021-31292 is high with a CVSS score of 7.5.
How can attackers exploit CVE-2021-31292?
Attackers can trigger a heap-based buffer overflow and cause a denial of service by exploiting the integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3.
What software versions are affected by CVE-2021-31292?
Exiv2 versions 0.25-4+deb10u2, 0.25-4+deb10u4, 0.27.3-3+deb11u2, 0.27.3-3+deb11u1, and 0.27.6-1 are affected by CVE-2021-31292.
Where can I find more information about CVE-2021-31292?
You can find more information about CVE-2021-31292 on the GitHub pages and the Debian security tracker provided in the references.
- collector/security-tracker-debian
- collector/nvd-index
- collector/nvd-api
- agent/author
- agent/type
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/weakness
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-31292
- agent/software-canonical-lookup
- agent/severity
- agent/remedy
- agent/references
- agent/softwarecombine
- agent/tags
- agent/description
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/exiv2
- canonical/exiv2 exiv2
- version/exiv2 exiv2/0.27.3
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- version/debian debian linux/10.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34
- package-manager/redhat