CVE-2021-29623

Published: 13 May 2021

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4.

Priority

Low

CVSS 3 base score: 3.3

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
Upstream
Released (v0.27.4)
Ubuntu 21.10 (Impish Indri)
Released (0.27.3-3ubuntu3)
Ubuntu 21.04 (Hirsute Hippo)
Released (0.27.3-3ubuntu1.3)
Ubuntu 20.04 LTS (Focal Fossa)
Released (0.27.2-8ubuntu2.4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(code not present)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(code not present)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/Exiv2/exiv2/pull/1627/commits/82e46b5524fb904e6660dadd2c6d8e5e47375a1a