PublicDateAtUSN: 2021-08-09 19:15:00 UTC
Candidate: CVE-2021-37616
PublicDate: 2021-08-09 19:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37616
 https://github.com/Exiv2/exiv2/pull/1758
 https://github.com/Exiv2/exiv2/security/advisories/GHSA-54f7-vvj7-545w
 https://ubuntu.com/security/notices/USN-5043-1
Description:
 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.
Ubuntu-Description:
Notes:
 leosilva> bionic, xenial not affected, code not present.
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to: leosilva
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H [5.5 MEDIUM]


Patches_exiv2:
 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)
upstream_exiv2: needs-triage
trusty_exiv2: ignored (out of standard support)
trusty/esm_exiv2: DNE
xenial_exiv2: ignored (out of standard support)
esm-infra/xenial_exiv2: released (0.25-2.1ubuntu16.04.7+esm4)
bionic_exiv2: not-affected (code not present)
focal_exiv2: released (0.27.2-8ubuntu2.6)
hirsute_exiv2: released (0.27.3-3ubuntu1.5)
impish_exiv2: released (0.27.3-3ubuntu4)
jammy_exiv2: released (0.27.3-3ubuntu4)
devel_exiv2: released (0.27.3-3ubuntu4)