PublicDateAtUSN: 2021-08-09 19:15:00 UTC
Candidate: CVE-2021-37621
PublicDate: 2021-08-09 19:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37621
 https://github.com/Exiv2/exiv2/pull/1778
 https://github.com/Exiv2/exiv2/security/advisories/GHSA-m479-7frc-gqqg
 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. An infinite loop was
 found in Exiv2 versions v0.27.4 and earlier. The infinite loop 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 image ICC
 profile, which is a less frequently used Exiv2 operation that requires an
 extra command line option (`-p C`). The bug is fixed in version v0.27.5.
Ubuntu-Description:
Notes:
 leosilva> bionic, xenial are 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/1778/commits/0738294f773b3710b300ea4dd9a79189996381e1 (regression test)
 upstream: https://github.com/Exiv2/exiv2/pull/1778/commits/191cd2690608f19335d82ed2be36c7ce8bdc60b9 (fix)
 upstream: https://github.com/Exiv2/exiv2/pull/1778/commits/d9fd4c4272df172ae89c0a9c41341adc75ebba86 (extra 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: not-affected (code not present)
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)