CVE-2023-4813 MEDIUM

CVE-2023-4813: Glibc: potential use-after-free in gaih_inet()

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-416
Published September 12, 2023
Last update November 11, 2025
View on NVD All CVEs

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

A flaw has been identified in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

Key dates

02Disclosure timeline

September 12, 2023 CVE published
November 11, 2025 Record updated