CVE-2021-29458
Published: 19 April 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 v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing 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 insert. The bug is fixed in version v0.27.4.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
exiv2 Launchpad, Ubuntu, Debian |
bionic |
Released
(0.25-3.1ubuntu0.18.04.7)
|
| focal |
Released
(0.27.2-8ubuntu2.2)
|
|
| groovy |
Released
(0.27.3-3ubuntu0.2)
|
|
| hirsute |
Released
(0.27.3-3ubuntu1.1)
|
|
| impish |
Released
(0.27.3-3ubuntu2)
|
|
| jammy |
Released
(0.27.3-3ubuntu2)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.25-2.1ubuntu16.04.7+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://github.com/Exiv2/exiv2/pull/1536/commits/9b7a19f957af53304655ed1efe32253a1b11a8d0 |
||
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 |