CVE-2021-37616
Publication date 9 August 2021
Last updated 24 July 2024
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| exiv2 | 22.04 LTS jammy |
Fixed 0.27.3-3ubuntu4
|
| 20.04 LTS focal |
Fixed 0.27.2-8ubuntu2.6
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Fixed 0.25-2.1ubuntu16.04.7+esm4
|
|
| 14.04 LTS trusty | Not in release |
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Patch details
| Package | Patch details |
|---|---|
| exiv2 |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.5 · Medium
|
| 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
Related Ubuntu Security Notices (USN)
- USN-5043-1
- Exiv2 vulnerabilities
- 17 August 2021