| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb\n\nWe should always check if skb_header_pointer's return is NULL before\nusing it, otherwise it may cause null-ptr-deref, as syzbot reported:\n\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:sctp_rcv_ootb net/sctp/input.c:705 [inline]\n RIP: 0010:sctp_rcv+0x1d84/0x3220 net/sctp/input.c:196\n Call Trace:\n <IRQ>\n sctp6_rcv+0x38/0x60 net/sctp/ipv6.c:1109\n ip6_protocol_deliver_rcu+0x2e9/0x1ca0 net/ipv6/ip6_input.c:422\n ip6_input_finish+0x62/0x170 net/ipv6/ip6_input.c:463\n NF_HOOK include/linux/netfilter.h:307 [inline]\n NF_HOOK include/linux/netfilter.h:301 [inline]\n ip6_input+0x9c/0xd0 net/ipv6/ip6_input.c:472\n dst_input include/net/dst.h:460 [inline]\n ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline]\n NF_HOOK include/linux/netfilter.h:307 [inline]\n NF_HOOK include/linux/netfilter.h:301 [inline]\n ipv6_rcv+0x28c/0x3c0 net/ipv6/ip6_input.c:297" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sctp/input.c" |
| ], |
| "versions": [ |
| { |
| "version": "3acb50c18d8d6650f10919464ade4dcdaf41d62f", |
| "lessThan": "77bc7dcf0fcc1519341a91788d7a2914fcfddf6d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3acb50c18d8d6650f10919464ade4dcdaf41d62f", |
| "lessThan": "8c630a7b4f9dec63f08bd881ab77984a724a5124", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3acb50c18d8d6650f10919464ade4dcdaf41d62f", |
| "lessThan": "ec018021cf445abbe8e2f3e2a7f1dcc813cb8ea1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3acb50c18d8d6650f10919464ade4dcdaf41d62f", |
| "lessThan": "9c6591ae8e63f93c895ad5e2703c36c548aac997", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3acb50c18d8d6650f10919464ade4dcdaf41d62f", |
| "lessThan": "8180611c238e11676612eb2a9828b1c7a3a4d77b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3acb50c18d8d6650f10919464ade4dcdaf41d62f", |
| "lessThan": "f7e745f8e94492a8ac0b0a26e25f2b19d342918f", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sctp/input.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.8", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.8", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.249", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.209", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.151", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.71", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.14.10", |
| "lessThanOrEqual": "5.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15", |
| "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": "4.8", |
| "versionEndExcluding": "4.14.249" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.8", |
| "versionEndExcluding": "4.19.209" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.8", |
| "versionEndExcluding": "5.4.151" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.8", |
| "versionEndExcluding": "5.10.71" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.8", |
| "versionEndExcluding": "5.14.10" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.8", |
| "versionEndExcluding": "5.15" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/77bc7dcf0fcc1519341a91788d7a2914fcfddf6d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8c630a7b4f9dec63f08bd881ab77984a724a5124" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ec018021cf445abbe8e2f3e2a7f1dcc813cb8ea1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/9c6591ae8e63f93c895ad5e2703c36c548aac997" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8180611c238e11676612eb2a9828b1c7a3a4d77b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f7e745f8e94492a8ac0b0a26e25f2b19d342918f" |
| } |
| ], |
| "title": "sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47397", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
