CVE-2021-32815
Publication date 9 August 2021
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The assertion failure is triggered when Exiv2 is used to modify 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 modifying 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 `fi`. ### Patches The bug is fixed in version v0.27.5. ### References Regression test and bug fix: #1739 ### For more information Please see our [security policy](https://github.com/Exiv2/exiv2/security/policy) for information about Exiv2 security.
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 |
Fixed 0.25-3.1ubuntu0.18.04.11
|
|
16.04 LTS xenial |
Fixed 0.25-2.1ubuntu16.04.7+esm4
|
|
14.04 LTS trusty | Not in release |
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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