| { |
| "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: do asoc update earlier in sctp_sf_do_dupcook_a\n\nThere's a panic that occurs in a few of envs, the call trace is as below:\n\n [] general protection fault, ... 0x29acd70f1000a: 0000 [#1] SMP PTI\n [] RIP: 0010:sctp_ulpevent_notify_peer_addr_change+0x4b/0x1fa [sctp]\n [] sctp_assoc_control_transport+0x1b9/0x210 [sctp]\n [] sctp_do_8_2_transport_strike.isra.16+0x15c/0x220 [sctp]\n [] sctp_cmd_interpreter.isra.21+0x1231/0x1a10 [sctp]\n [] sctp_do_sm+0xc3/0x2a0 [sctp]\n [] sctp_generate_timeout_event+0x81/0xf0 [sctp]\n\nThis is caused by a transport use-after-free issue. When processing a\nduplicate COOKIE-ECHO chunk in sctp_sf_do_dupcook_a(), both COOKIE-ACK\nand SHUTDOWN chunks are allocated with the transort from the new asoc.\nHowever, later in the sideeffect machine, the old asoc is used to send\nthem out and old asoc's shutdown_last_sent_to is set to the transport\nthat SHUTDOWN chunk attached to in sctp_cmd_setup_t2(), which actually\nbelongs to the new asoc. After the new_asoc is freed and the old asoc\nT2 timeout, the old asoc's shutdown_last_sent_to that is already freed\nwould be accessed in sctp_sf_t2_timer_expire().\n\nThanks Alexander and Jere for helping dig into this issue.\n\nTo fix it, this patch is to do the asoc update first, then allocate\nthe COOKIE-ACK and SHUTDOWN chunks with the 'updated' old asoc. This\nwould make more sense, as a chunk from an asoc shouldn't be sent out\nwith another asoc. We had fixed quite a few issues caused by this." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sctp/sm_statefuns.c" |
| ], |
| "versions": [ |
| { |
| "version": "db8bf823e70f239372c62f13e4eb6f08a1665e8c", |
| "lessThan": "d624f2991b977821375fbd56c91b0c91d456a697", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a204d577be70e0a0a6023cf1b9859c9ebffaeecd", |
| "lessThan": "b1b31948c0af44628e43353828453461bb74098f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "145cb2f7177d94bc54563ed26027e952ee0ae03c", |
| "lessThan": "f01988ecf3654f805282dce2d3bb9afe68d2691e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "145cb2f7177d94bc54563ed26027e952ee0ae03c", |
| "lessThan": "61b877bad9bb0d82b7d8841be50872557090a704", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "145cb2f7177d94bc54563ed26027e952ee0ae03c", |
| "lessThan": "0bfd913c2121b3d553bfd52810fe6061d542d625", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "145cb2f7177d94bc54563ed26027e952ee0ae03c", |
| "lessThan": "35b4f24415c854cd718ccdf38dbea6297f010aae", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a5ce8531ea508d270822b2bc6140c6198c8a2a7b", |
| "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/sm_statefuns.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.7", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.7", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.191", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.120", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.38", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.11.22", |
| "lessThanOrEqual": "5.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.12.5", |
| "lessThanOrEqual": "5.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.13", |
| "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": "4.19.123", |
| "versionEndExcluding": "4.19.191" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.4.41", |
| "versionEndExcluding": "5.4.120" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.10.38" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.11.22" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.12.5" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.13" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.6.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/d624f2991b977821375fbd56c91b0c91d456a697" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b1b31948c0af44628e43353828453461bb74098f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f01988ecf3654f805282dce2d3bb9afe68d2691e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/61b877bad9bb0d82b7d8841be50872557090a704" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0bfd913c2121b3d553bfd52810fe6061d542d625" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/35b4f24415c854cd718ccdf38dbea6297f010aae" |
| } |
| ], |
| "title": "sctp: do asoc update earlier in sctp_sf_do_dupcook_a", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-46999", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
