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CVE-2021-32617

Publication date 17 May 2021

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

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
21.10 impish
Fixed 0.27.3-3ubuntu3
21.04 hirsute
Fixed 0.27.3-3ubuntu1.3
20.10 groovy
Fixed 0.27.3-3ubuntu0.4
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
14.04 LTS trusty Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

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