CVE-2024-2961

Publication date 17 April 2024

Last updated 24 June 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.3 · High

Score breakdown

Description

The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to crash an application or overwrite a neighbouring variable.

Read the notes from the security team

Status

Package Ubuntu Release Status
glibc 25.10 questing
Fixed 2.39-0ubuntu8.1
25.04 plucky
Fixed 2.39-0ubuntu8.1
24.10 oracular
Fixed 2.39-0ubuntu8.1
24.04 LTS noble
Fixed 2.39-0ubuntu8.1
23.10 mantic
Fixed 2.38-1ubuntu6.2
22.04 LTS jammy
Fixed 2.35-0ubuntu3.7
20.04 LTS focal
Fixed 2.31-0ubuntu9.15
18.04 LTS bionic
Fixed 2.27-3ubuntu1.6+esm2
16.04 LTS xenial
Fixed 2.23-0ubuntu11.3+esm6
eglibc 25.10 questing Not in release
25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
14.04 LTS trusty
Fixed 2.19-0ubuntu6.15+esm3

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Notes

leosilva

introduced in 755104edc (v2.1.94)

Patch details

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

Package Patch details
glibc

Severity score breakdown

Parameter Value
Base score 7.3 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-6737-1
    • GNU C Library vulnerability
    • 18 April 2024
    • USN-6737-2
    • GNU C Library vulnerability
    • 29 April 2024
    • USN-6762-1
    • GNU C Library vulnerabilities
    • 2 May 2024

Other references