CVE-2021-37620

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. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to read 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. The bug is fixed in version v0.27.5.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
exiv2	22.04 LTS jammy	Fixed 0.27.3-3ubuntu4
	21.10 impish	Fixed 0.27.3-3ubuntu4.1
	21.04 hirsute	Fixed 0.27.3-3ubuntu1.6
	20.04 LTS focal	Fixed 0.27.2-8ubuntu2.7
	18.04 LTS bionic	Fixed 0.25-3.1ubuntu0.18.04.11
	16.04 LTS xenial	Fixed 0.25-2.1ubuntu16.04.7+esm4 Ubuntu Pro
	14.04 LTS trusty	Not in release

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Notes

leosilva

a regression was reported in (LP: #1941752) and fixed in USN-5043-2. It only affected focal, hirsute, impish and jammy.

Patch details

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

Package	Patch details
exiv2	Upstream: https://github.com/Exiv2/exiv2/pull/1769/commits/004f2a2447c3d5d1d178fb5d9e961a1b4c26dc98 Upstream: https://github.com/Exiv2/exiv2/pull/1769/commits/2e7bb581a234bfb0d0c9e16a1dbf037a8c30681e Upstream: https://github.com/Exiv2/exiv2/pull/1769/commits/76e313745e813f80e8910aceb2210af3ad8cf897

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