CVE-2021-32617
Publication date 17 May 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. An inefficient algorithm (quadratic complexity) was found in Exiv2 versions v0.27.3 and earlier. The inefficient algorithm 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, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4. 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 `rm`.
Status
Package | Ubuntu Release | Status |
---|---|---|
exiv2 | 22.04 LTS jammy |
Fixed 0.27.3-3ubuntu3
|
20.04 LTS focal |
Fixed 0.27.2-8ubuntu2.4
|
|
18.04 LTS bionic |
Fixed 0.25-3.1ubuntu0.18.04.9
|
|
16.04 LTS xenial |
Fixed 0.25-2.1ubuntu16.04.7+esm2
|
|
14.04 LTS trusty | Not in release |
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Get Ubuntu ProSeverity 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-4964-1
- Exiv2 vulnerabilities
- 25 May 2021