CVE-2023-2603

Publication date 15 May 2023

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A vulnerability was found in libcap. This issue occurs in the _libcap_strdup() function and can lead to an integer overflow if the input string is close to 4GiB.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libcap2	23.04 lunar	Fixed 1:2.66-3ubuntu2.1
	22.10 kinetic	Fixed 1:2.44-1ubuntu0.22.10.1
	22.04 LTS jammy	Fixed 1:2.44-1ubuntu0.22.04.1
	20.04 LTS focal	Fixed 1:2.32-1ubuntu0.1
	18.04 LTS bionic	Fixed 1:2.25-1.2ubuntu0.1~esm1
	16.04 LTS xenial	Fixed 1:2.24-12ubuntu0.1~esm1
	14.04 LTS trusty	Fixed 1:2.24-0ubuntu2+esm1

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Notes

alexmurray

also referenced as LCAP-CR-23-02

Patch details

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

Package	Patch details
libcap2	Upstream: ?id=422

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H