Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2023-5156

Publication date 25 September 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash.

Read the notes from the security team

Status

Package Ubuntu Release Status
eglibc 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Vulnerable, fix deferred
glibc 24.04 LTS noble
Fixed 2.38-1ubuntu5
23.10 mantic
Fixed 2.38-1ubuntu5
23.04 lunar
Fixed 2.37-0ubuntu2.2
22.04 LTS jammy
Fixed 2.35-0ubuntu3.5
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Ignored

Notes

ccdm94

as of 2023-10-19, no releases are vulnerable to this CVE, as the fix for CVE-2023-4806 has not yet been applied to glibc in any of these releases. Whenever CVE-2023-4806 is patched, the patch for CVE-2023-5156 must be included as well in order to avoid regressions and the inclusion of a new vulnerability in glibc. the backports used to patch xenial, bionic and focal for CVE-2023-4806 do not introduce this vulnerability.

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H