CVE-2022-50243

{"id": "CVE-2022-50243", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2025-09-15T14:15:34.620", "references": [{"url": "https://git.kernel.org/stable/c/022152aaebe116a25c39818a07e175a8cd3c1e11", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/0f90099d18e3abdc01babf686f41f63fe04939c1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/19d636b663e0e92951bba5fced929ca7fd25c552", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/382ff44716603a54f5fd238ddec6a2468e217612", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3b0fcf5e29c0940e1169ce9c44f73edd98bdf12d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b8fa99a3a11bdd77fef6b4a97f1021eb30b5ba40", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f65955340e0044f5c41ac799a01698ac7dee8a4e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: handle the error returned from sctp_auth_asoc_init_active_key\n\nWhen it returns an error from sctp_auth_asoc_init_active_key(), the\nactive_key is actually not updated. The old sh_key will be freeed\nwhile it's still used as active key in asoc. Then an use-after-free\nwill be triggered when sending patckets, as found by syzbot:\n\n sctp_auth_shkey_hold+0x22/0xa0 net/sctp/auth.c:112\n sctp_set_owner_w net/sctp/socket.c:132 [inline]\n sctp_sendmsg_to_asoc+0xbd5/0x1a20 net/sctp/socket.c:1863\n sctp_sendmsg+0x1053/0x1d50 net/sctp/socket.c:2025\n inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:734\n\nThis patch is to fix it by not replacing the sh_key when it returns\nerrors from sctp_auth_asoc_init_active_key() in sctp_auth_set_key().\nFor sctp_auth_set_active_key(), old active_key_id will be set back\nto asoc->active_key_id when the same thing happens."}], "lastModified": "2025-11-24T20:04:28.100", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DCE54A80-B2F4-48C8-B1B8-5FC1ECF726F1", "versionEndExcluding": "4.19.262", "versionStartIncluding": "4.19.199"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D7109D38-A66C-4EDF-8C34-4D04BAEA0FF9", "versionEndExcluding": "5.4.220", "versionStartIncluding": "5.4.136"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BDEBB292-0B5D-4A72-AFAF-420814880C6C", "versionEndExcluding": "5.10.150", "versionStartIncluding": "5.10.54"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3FCF5994-AD9A-4278-8BF1-BC9274834795", "versionEndExcluding": "5.14", "versionStartIncluding": "5.13.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39463598-6EF5-4552-9079-229E83AB7C80", "versionEndExcluding": "5.15.75", "versionStartIncluding": "5.14.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "19B4C3A4-E5C3-41DC-BB14-BE72858E7D35", "versionEndExcluding": "5.19.17", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5BCD8201-B847-4442-B894-70D430128DEF", "versionEndExcluding": "6.0.3", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A05198E-F8FA-4517-8D0E-8C95066AED38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D185CF67-7E4A-4154-93DB-CE379C67DB56"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D1DA0AF6-02F4-47C7-A318-8C006ED0C665"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "49DD30B1-8C99-4C38-A66B-CAB3827BEE8A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "15013998-4AF0-4CDC-AB13-829ECD8A8E66"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "376A25CF-C05B-48F1-99B1-8FB0314A8E06"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}