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CVE-2021-37615

Published: 09 August 2021

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri)
Released (0.27.3-3ubuntu4)
Ubuntu 21.04 (Hirsute Hippo)
Released (0.27.3-3ubuntu1.5)
Ubuntu 20.04 LTS (Focal Fossa)
Released (0.27.2-8ubuntu2.6)
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/1758/commits/8e79d9a4e00828777e17276571fb8ed1b7cd49aa (regression test)
Upstream: https://github.com/Exiv2/exiv2/pull/1758/commits/18d168959792d1eb42bb71d001ff46b57d6b97ab (fix)
Upstream: https://github.com/Exiv2/exiv2/pull/1758/commits/3ac426b2c04004422c290425259082281e090116 (fix)