PublicDateAtUSN: 2021-08-09 19:15:00 UTC
Candidate: CVE-2021-37620
PublicDate: 2021-08-09 19:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37620
 https://github.com/Exiv2/exiv2/pull/1769
 https://github.com/Exiv2/exiv2/security/advisories/GHSA-v5g7-46xf-h728
 https://ubuntu.com/security/notices/USN-5043-1
 https://ubuntu.com/security/notices/USN-5043-2
Description:
 Exiv2 is a command-line utility and C++ library for reading, writing,
 deleting, and modifying the metadata of image files. An out-of-bounds read
 was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is
 triggered when Exiv2 is used to read 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. The bug is fixed in version v0.27.5.
Ubuntu-Description:
Notes:
 leosilva> a regression was reported in (LP: #1941752) and fixed in
 leosilva> USN-5043-2. It only affected focal, hirsute, impish and jammy.
Mitigation:
Bugs:
 https://bugs.launchpad.net/ubuntu/+source/exiv2/+bug/1941752
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/1769/commits/004f2a2447c3d5d1d178fb5d9e961a1b4c26dc98 (regression test)
 upstream: https://github.com/Exiv2/exiv2/pull/1769/commits/2e7bb581a234bfb0d0c9e16a1dbf037a8c30681e (fix)
 upstream: https://github.com/Exiv2/exiv2/pull/1769/commits/76e313745e813f80e8910aceb2210af3ad8cf897 (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: released (0.25-3.1ubuntu0.18.04.11)
focal_exiv2: released (0.27.2-8ubuntu2.7)
hirsute_exiv2: released (0.27.3-3ubuntu1.6)
impish_exiv2: released (0.27.3-3ubuntu4.1)
jammy_exiv2: released (0.27.3-3ubuntu4)
devel_exiv2: released (0.27.3-3ubuntu4)