{"id":"CVE-2023-42753","details":"An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h-\u003enets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.","modified":"2026-03-23T05:05:19.437668413Z","published":"2023-09-25T21:15:15.923Z","related":["ALSA-2024:0113","SUSE-SU-2023:4030-1","SUSE-SU-2023:4035-1","SUSE-SU-2023:4057-1","SUSE-SU-2023:4058-1","SUSE-SU-2023:4071-1","SUSE-SU-2023:4072-1","SUSE-SU-2023:4072-2","SUSE-SU-2023:4093-1","SUSE-SU-2023:4095-1","SUSE-SU-2023:4142-1","SUSE-SU-2024:1181-1","SUSE-SU-2024:1183-1","SUSE-SU-2024:1236-1","SUSE-SU-2024:1246-1","SUSE-SU-2024:1249-1","SUSE-SU-2024:1251-1","SUSE-SU-2024:1252-1","SUSE-SU-2024:1257-1","SUSE-SU-2024:1288-1","SUSE-SU-2024:1299-1","SUSE-SU-2024:1312-1","SUSE-SU-2025:03600-1","SUSE-SU-2025:03613-1","SUSE-SU-2025:03615-1","SUSE-SU-2025:03626-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20851-1","SUSE-SU-2025:20861-1","SUSE-SU-2025:20870-1","SUSE-SU-2025:20898-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3751-1","SUSE-SU-2025:3761-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4141-1","openSUSE-SU-2024:13305-1","openSUSE-SU-2024:13704-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2023/09/22/10"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7370"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0376"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0412"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0403"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0562"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0999"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7418"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7539"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0113"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0346"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7379"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7382"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7389"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7411"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7558"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0134"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0340"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0593"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-42753"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0461"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0347"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0089"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0371"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0378"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0402"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0563"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2239843"},{"type":"EVIDENCE","url":"https://seclists.org/oss-sec/2023/q3/216"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"4.4.165"},{"fixed":"4.5"}]},{"events":[{"introduced":"4.9.141"},{"fixed":"4.10"}]},{"events":[{"introduced":"4.14.84"},{"fixed":"4.15"}]},{"events":[{"introduced":"4.19.5"},{"fixed":"4.19.295"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.257"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.195"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.15.132"}]},{"events":[{"introduced":"5.16"},{"fixed":"6.1.53"}]},{"events":[{"introduced":"6.2"},{"fixed":"6.4.16"}]},{"events":[{"introduced":"6.5"},{"fixed":"6.5.3"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-42753.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}