{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2023-52434","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-20T12:30:33.290Z","datePublished":"2024-02-20T18:04:44.006Z","dateUpdated":"2026-05-11T19:27:16.654Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:27:16.654Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential OOBs in smb2_parse_contexts()\n\nValidate offsets and lengths before dereferencing create contexts in\nsmb2_parse_contexts().\n\nThis fixes following oops when accessing invalid create contexts from\nserver:\n\n  BUG: unable to handle page fault for address: ffff8881178d8cc3\n  #PF: supervisor read access in kernel mode\n  #PF: error_code(0x0000) - not-present page\n  PGD 4a01067 P4D 4a01067 PUD 0\n  Oops: 0000 [#1] PREEMPT SMP NOPTI\n  CPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n  rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n  RIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]\n  Code: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00\n  00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 <0f> b7\n  7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00\n  RSP: 0018:ffffc900007939e0 EFLAGS: 00010216\n  RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90\n  RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000\n  RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000\n  R10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000\n  R13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22\n  FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)\n  knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0\n  PKRU: 55555554\n  Call Trace:\n   <TASK>\n   ? __die+0x23/0x70\n   ? page_fault_oops+0x181/0x480\n   ? search_module_extables+0x19/0x60\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? exc_page_fault+0x1b6/0x1c0\n   ? asm_exc_page_fault+0x26/0x30\n   ? smb2_parse_contexts+0xa0/0x3a0 [cifs]\n   SMB2_open+0x38d/0x5f0 [cifs]\n   ? smb2_is_path_accessible+0x138/0x260 [cifs]\n   smb2_is_path_accessible+0x138/0x260 [cifs]\n   cifs_is_path_remote+0x8d/0x230 [cifs]\n   cifs_mount+0x7e/0x350 [cifs]\n   cifs_smb3_do_mount+0x128/0x780 [cifs]\n   smb3_get_tree+0xd9/0x290 [cifs]\n   vfs_get_tree+0x2c/0x100\n   ? capable+0x37/0x70\n   path_mount+0x2d7/0xb80\n   ? srso_alias_return_thunk+0x5/0xfbef5\n   ? _raw_spin_unlock_irqrestore+0x44/0x60\n   __x64_sys_mount+0x11a/0x150\n   do_syscall_64+0x47/0xf0\n   entry_SYSCALL_64_after_hwframe+0x6f/0x77\n  RIP: 0033:0x7f8737657b1e"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/cached_dir.c","fs/smb/client/smb2pdu.c","fs/smb/client/smb2proto.h"],"versions":[{"version":"b8c32dbb0deb287a5fcb78251e4eae6c7275760d","lessThan":"6726429c18c62dbf5e96ebbd522f262e016553fb","status":"affected","versionType":"git"},{"version":"b8c32dbb0deb287a5fcb78251e4eae6c7275760d","lessThan":"13fb0fc4917621f3dfa285a27eaf7151d770b5e5","status":"affected","versionType":"git"},{"version":"b8c32dbb0deb287a5fcb78251e4eae6c7275760d","lessThan":"890bc4fac3c0973a49cac35f634579bebba7fe48","status":"affected","versionType":"git"},{"version":"b8c32dbb0deb287a5fcb78251e4eae6c7275760d","lessThan":"1ae3c59355dc9882e09c020afe8ffbd895ad0f29","status":"affected","versionType":"git"},{"version":"b8c32dbb0deb287a5fcb78251e4eae6c7275760d","lessThan":"17a0f64cc02d4972e21c733d9f21d1c512963afa","status":"affected","versionType":"git"},{"version":"b8c32dbb0deb287a5fcb78251e4eae6c7275760d","lessThan":"af1689a9b7701d9907dfc84d2a4b57c4bc907144","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/cached_dir.c","fs/smb/client/smb2pdu.c","fs/smb/client/smb2proto.h"],"versions":[{"version":"3.7","status":"affected"},{"version":"0","lessThan":"3.7","status":"unaffected","versionType":"semver"},{"version":"5.4.277","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.211","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.150","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.79","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.8","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.4.277"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.10.211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.15.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.1.79"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.6.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.7"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb"},{"url":"https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5"},{"url":"https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48"},{"url":"https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29"},{"url":"https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa"},{"url":"https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144"}],"title":"smb: client: fix potential OOBs in smb2_parse_contexts()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52434","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-02-20T19:31:41.798943Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-07-05T17:21:08.159Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20250117-0009/"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-01-17T20:02:50.854Z"}}]},"dataVersion":"5.2"}