CVE-2023-4813

Glibc: potential use-after-free in gaih_inet()

CVSS 5.9 MEDIUMEPSS 1.7%CWE-416

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.9EPSS 1.7%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

12 Sep 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Red Hat · Red Hat Enterprise Linux 6 Red Hat · Red Hat Enterprise Linux 7 Red Hat · Red Hat Enterprise Linux 8 Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat · Red Hat Enterprise Linux 9 Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8

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References

https://access.redhat.com/errata/RHBA-2024:2413 https://access.redhat.com/errata/RHSA-2023:5453 https://access.redhat.com/errata/RHSA-2023:5455 https://access.redhat.com/errata/RHSA-2023:7409 https://access.redhat.com/security/cve/CVE-2023-4813 https://bugzilla.redhat.com/show_bug.cgi?id=2237798 https://security.netapp.com/advisory/ntap-20231110-0003/http://www.openwall.com/lists/oss-security/2023/10/03/8