{"id":"CVE-2026-53002","summary":"netfilter: conntrack: remove sprintf usage","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: conntrack: remove sprintf usage\n\nReplace it with scnprintf, the buffer sizes are expected to be large enough\nto hold the result, no need for snprintf+overflow check.\n\nIncrease buffer size in mangle_content_len() while at it.\n\nBUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270\nWrite of size 1 at addr [..]\n vsnprintf+0xea5/0x1270\n sprintf+0xb1/0xe0\n mangle_content_len+0x1ac/0x280\n nf_nat_sdp_session+0x1cc/0x240\n process_sdp+0x8f8/0xb80\n process_invite_request+0x108/0x2b0\n process_sip_msg+0x5da/0xf50\n sip_help_tcp+0x45e/0x780\n nf_confirm+0x34d/0x990\n [..]","modified":"2026-07-16T03:32:40.877812398Z","published":"2026-06-24T16:29:14.391Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53002.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2f793ba78470a99f40389b7dc60a81d9f5ad3956"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6bbf829b4c1b44c941c47dd0d710f1393258f3d5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e7066bdb481a87fe88c4fa563e348c03b2d373d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8e3be0d12615a173fe260cd42753ca7a001acbf2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a8e0a32a23d3f34862af3b4da792ecb3a891a9a3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ab64e61c9323fa6de21bd20da1ddb29a0fb65d34"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c08ff52e44945e6ef4ce0790f49ea761b060c45b"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53002.json"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-53002"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53002.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53002"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492329"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9fafcd7b203229c3f3893a475741afc27e276306"},{"fixed":"2f793ba78470a99f40389b7dc60a81d9f5ad3956"},{"fixed":"6bbf829b4c1b44c941c47dd0d710f1393258f3d5"},{"fixed":"ab64e61c9323fa6de21bd20da1ddb29a0fb65d34"},{"fixed":"1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e"},{"fixed":"a8e0a32a23d3f34862af3b4da792ecb3a891a9a3"},{"fixed":"8e3be0d12615a173fe260cd42753ca7a001acbf2"},{"fixed":"c08ff52e44945e6ef4ce0790f49ea761b060c45b"},{"fixed":"6e7066bdb481a87fe88c4fa563e348c03b2d373d"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53002.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.20"},{"fixed":"5.10.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.141"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.91"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.33"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53002.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}