{"id":"CVE-2023-4813","title":"A flaw has been identified in glibc","summary":"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 h…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-416"],"vendor":"gnu","product":"glibc","affected":["glibc < 2.36","enterprise_linux = 8.0","enterprise_linux = 9.0","enterprise_linux_eus = 8.8","enterprise_linux_eus = 9.2","enterprise_linux_for_ibm_z_systems_eus_s390x = 9.2","enterprise_linux_for_ibm_z_systems_s390x = 9.2","enterprise_linux_for_power_little_endian = 9.2_ppc64le","enterprise_linux_for_power_little_endian_eus = 9.2_ppc64le","enterprise_linux_server_aus = 9.2","enterprise_linux_server_tus = 8.8","fedora = 38","active_iq_unified_manager","h300s_firmware","h500s_firmware","h700s_firmware","h410s_firmware","h410c_firmware"],"patched":["glibc 2.36"],"published":"2023-09-12","updated":"2026-10-14","sourceUpdated":"2026-10-14T22:17:18.143","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-4813","references":[{"url":"https://access.redhat.com/errata/RHBA-2024:2413","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:5453","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:5455","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2023:7409","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2023-4813","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2237798","label":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2023/10/03/8","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:5453","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:5455","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2023:7409","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/security/cve/CVE-2023-4813","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2237798","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20231110-0003/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.01926,"epssPercentile":0.79542,"exploits":{"github":1,"githubRepos":["https://github.com/tnishiox/cve-2023-4813"],"checkedAt":"2026-10-14T23:00:36.688Z"},"exploitAvailable":true,"ingestedAt":"2026-10-14T23:00:02.004Z","slug":"CVE-2023-4813","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `glibc < 2.36`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `enterprise_linux_eus = 8.8`\n- `enterprise_linux_eus = 9.2`\n- `enterprise_linux_for_ibm_z_systems_eus_s390x = 9.2`\n- `enterprise_linux_for_ibm_z_systems_s390x = 9.2`\n- `enterprise_linux_for_power_little_endian = 9.2_ppc64le`\n- `enterprise_linux_for_power_little_endian_eus = 9.2_ppc64le`\n- `enterprise_linux_server_aus = 9.2`\n- `enterprise_linux_server_tus = 8.8`\n- `fedora = 38`\n- `active_iq_unified_manager`\n- `h300s_firmware`\n- `h500s_firmware`\n- `h700s_firmware`\n- `h410s_firmware`\n- `h410c_firmware`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `glibc 2.36`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":32.5,"likelihood":0.4,"exploitation":12,"ransomware":0},"changes":[]}