CVE-2021-37620
Published: 9 August 2021
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.
Notes
Author | Note |
---|---|
leosilva | a regression was reported in (LP: #1941752) and fixed in USN-5043-2. It only affected focal, hirsute, impish and jammy. |
Priority
Status
Package | Release | Status |
---|---|---|
exiv2 Launchpad, Ubuntu, Debian |
impish |
Released
(0.27.3-3ubuntu4.1)
|
jammy |
Released
(0.27.3-3ubuntu4)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
bionic |
Released
(0.25-3.1ubuntu0.18.04.11)
|
|
xenial |
Released
(0.25-2.1ubuntu16.04.7+esm4)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
focal |
Released
(0.27.2-8ubuntu2.7)
|
|
hirsute |
Released
(0.27.3-3ubuntu1.6)
|
|
Patches: 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) |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
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
- NVD
- Launchpad
- Debian