CVE-2021-37619
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 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 v0.27.5.
Notes
| Author | Note |
|---|---|
| leosilva | bionic, xenial not affected, code not present. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
exiv2 Launchpad, Ubuntu, Debian |
focal |
Released
(0.27.2-8ubuntu2.6)
|
| impish |
Released
(0.27.3-3ubuntu4)
|
|
| jammy |
Released
(0.27.3-3ubuntu4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| bionic |
Not vulnerable
(code not present)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
| hirsute |
Released
(0.27.3-3ubuntu1.5)
|
|
|
Patches: upstream: https://github.com/Exiv2/exiv2/pull/1752/commits/a7b920bdbde1ee15a1a470d743dbae69ee398c75 (regression test) upstream: https://github.com/Exiv2/exiv2/pull/1752/commits/9be257340193dbe3fb810aa33531c40ae9df6414 (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 |