{"id":"CVE-2023-53676","revision":null,"records":[{"revision":"29910797e85e4672b729f6e71e4d6149","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-53676","aliases":[],"title":"scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()\n\nThe function lio_target_nacl_info_show() uses sprintf() in a loop to print\ndetails for every iSCSI connection in a session without checking for the\nbuffer length. With enough iSCSI connections it's possible to overflow the\nbuffer provided by configfs and corrupt the memory.\n\nThis patch replaces sprintf() with sysfs_emit_at() that checks for buffer\nboundries.","state":0,"publishedAt":"2025-10-07T15:21:31.757+00:00","modifiedAt":"2026-10-15T21:41:33.205+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/target/iscsi/iscsi_target_configfs.c\"\n ],\n \"versions\": [\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"df349e84c2cb0dd05d98c8e1189c26ab4b116083\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"114b44dddea1f8f99576de3c0e6e9059012002fc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"5353df78c22623b42a71d51226d228a8413097e2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"4738bf8b2d3635c2944b81b2a84d97b8c8b0978d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"0cac6cbb9908309352a5d30c1876882771d3da50\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e48354ce078c079996f89d715dfa44814b4eba01\",\n \"lessThan\": \"801f287c93ff95582b0a2d2163f12870a2f076d4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/target/iscsi/iscsi_target_configfs.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.1\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.1\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.14.326\",\n \"lessThanOrEqual\": \"4.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.295\",\n \"lessThanOrEqual\": \"4.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.257\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.197\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.133\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.55\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.5.5\",\n \"lessThanOrEqual\": \"6.5.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083","https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc","https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6","https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a","https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2","https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d","https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50","https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53676","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53676","identifiers":["CVE-2023-53676"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-09T13:04:36.1502744+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T13:04:36.1502744+00:00","lastSuccessAt":"2026-11-09T13:04:36.3096956+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.3096959+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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