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.
Fix
Public exploits 1
- tnishiox/cve-2023-4813 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 2
- https://bugzilla.redhat.com/show_bug.cgi?id=2237798 Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2237798 Issue Tracking, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.9 · gnu, redhat, fedoraprojectNVD modified 2026-10-14 22:17
Affected (CPE criteria) 18
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_eus:9.2:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:9.2:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_s390x:9.2:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:9.2_ppc64le:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.2_ppc64le:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server_aus:9.2:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server_tus:8.8:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
References 14
- https://access.redhat.com/errata/RHBA-2024:2413
- https://access.redhat.com/errata/RHSA-2023:5453 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5455 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7409 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-4813 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2237798 Issue Tracking, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2023/10/03/8
- https://access.redhat.com/errata/RHSA-2023:5453 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:5455 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:7409 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-4813 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2237798 Issue Tracking, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231110-0003/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html