CVE-2021-37615
Published: 9 August 2021
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference 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 interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). 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 |
impish |
Released
(0.27.3-3ubuntu4)
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| focal |
Released
(0.27.2-8ubuntu2.6)
|
|
| hirsute |
Released
(0.27.3-3ubuntu1.5)
|
|
| bionic |
Not vulnerable
(code not present)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
| jammy |
Released
(0.27.3-3ubuntu4)
|
|
|
Patches: upstream: https://github.com/Exiv2/exiv2/pull/1758/commits/8e79d9a4e00828777e17276571fb8ed1b7cd49aa (regression test) upstream: https://github.com/Exiv2/exiv2/pull/1758/commits/18d168959792d1eb42bb71d001ff46b57d6b97ab (fix) upstream: https://github.com/Exiv2/exiv2/pull/1758/commits/3ac426b2c04004422c290425259082281e090116 (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 |