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CVE-2021-31292

Published: 26 July 2021

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.

Notes

AuthorNote
mdeslaur
This is the same commit that was used as part of the
fix for CVE-2021-29458, so not-affected

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable

hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

trusty Does not exist

upstream Needs triage

xenial Not vulnerable

Patches:
upstream: https://github.com/Exiv2/exiv2/pull/1539/commits/9b7a19f957af53304655ed1efe32253a1b11a8d0

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H