{"id":"CVE-2023-4527","details":"A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash.","modified":"2026-03-15T22:03:21.616993Z","published":"2023-09-18T17:15:55.067Z","related":["ALSA-2023:5453","ALSA-2023:5455","CGA-7x26-vgm5-g7gp","MGASA-2023-0270","openSUSE-SU-2024:13273-1"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:5453"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-4527"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2023/09/25/1"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202310-03"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20231116-0012/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:5455"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2234712"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"2.36"},{"fixed":"2.36.113"}]},{"events":[{"introduced":"2.37"},{"fixed":"2.37.38"}]},{"events":[{"introduced":"2.38"},{"fixed":"2.38.19"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0_ppc64le"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2_ppc64le"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0_aarch64"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2_aarch64"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0_s390x"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2_s390x"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.8"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0_aarch64"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2_aarch64"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0_s390x"}]},{"events":[{"introduced":"0"},{"last_affected":"8.8_s390x"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0_ppc64le"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2_ppc64le"}]},{"events":[{"introduced":"0"},{"last_affected":"8.8_ppc64le"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2_ppc64le"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2"}]},{"events":[{"introduced":"0"},{"last_affected":"9.2_ppc64le"}]},{"events":[{"introduced":"0"},{"last_affected":"8.8"}]},{"events":[{"introduced":"0"},{"last_affected":"37"}]},{"events":[{"introduced":"0"},{"last_affected":"38"}]},{"events":[{"introduced":"0"},{"last_affected":"39"}]},{"events":[{"introduced":"0"},{"last_affected":"the"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4527.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H"}]}