PublicDateAtUSN: 2021-08-09 18:15:00 UTC
Candidate: CVE-2021-32815
PublicDate: 2021-08-09 18:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32815
 https://github.com/Exiv2/exiv2/security/advisories/GHSA-mv9g-fxh2-m49m
 https://github.com/Exiv2/exiv2/pull/1739
 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. The assertion failure
 is triggered when Exiv2 is used to modify 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 modifying the
 metadata, which is a less frequently used Exiv2 operation than reading the
 metadata. For example, to trigger the bug in the Exiv2 command-line
 application, you need to add an extra command-line argument such as `fi`.
 ### Patches The bug is fixed in version v0.27.5. ### References Regression
 test and bug fix: #1739 ### For more information Please see our [security
 policy](https://github.com/Exiv2/exiv2/security/policy) for information
 about Exiv2 security.
Ubuntu-Description:
Notes:
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/1739/commits/0c17eb33c0a7fad1796ce23b8bbc32067f511aed (fix)
 upstream: https://github.com/Exiv2/exiv2/pull/1739/commits/cdda410e168e51438ca2ac77d9a220a32cf71d34 (regression test)
 upstream: https://github.com/Exiv2/exiv2/pull/1739/commits/04466168b87dedff4ec09c09e9c23f2334ba1734 (adds debug msg)
 upstream: https://github.com/Exiv2/exiv2/pull/1739/commits/c79d83f25fdd09218697d482211a61db87ce5333 (fixes debug msg)
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 (0.27.2-8ubuntu2.6)
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)