{ "id": "CVE-2022-48691", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-05-03T15:15:07.887", "lastModified": "2024-11-21T07:33:47.623", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: clean up hook list when offload flags check fails\n\nsplice back the hook list so nft_chain_release_hook() has a chance to\nrelease the hooks.\n\nBUG: memory leak\nunreferenced object 0xffff88810180b100 (size 96):\n comm \"syz-executor133\", pid 3619, jiffies 4294945714 (age 12.690s)\n hex dump (first 32 bytes):\n 28 64 23 02 81 88 ff ff 28 64 23 02 81 88 ff ff (d#.....(d#.....\n 90 a8 aa 83 ff ff ff ff 00 00 b5 0f 81 88 ff ff ................\n backtrace:\n [] kmalloc include/linux/slab.h:600 [inline]\n [] nft_netdev_hook_alloc+0x3b/0xc0 net/netfilter/nf_tables_api.c:1901\n [] nft_chain_parse_netdev net/netfilter/nf_tables_api.c:1998 [inline]\n [] nft_chain_parse_hook+0x33a/0x530 net/netfilter/nf_tables_api.c:2073\n [] nf_tables_addchain.constprop.0+0x10b/0x950 net/netfilter/nf_tables_api.c:2218\n [] nf_tables_newchain+0xa8b/0xc60 net/netfilter/nf_tables_api.c:2593\n [] nfnetlink_rcv_batch+0xa46/0xd20 net/netfilter/nfnetlink.c:517\n [] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:638 [inline]\n [] nfnetlink_rcv+0x1f9/0x220 net/netfilter/nfnetlink.c:656\n [] netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n [] netlink_unicast+0x397/0x4c0 net/netlink/af_netlink.c:1345\n [] netlink_sendmsg+0x396/0x710 net/netlink/af_netlink.c:1921\n [] sock_sendmsg_nosec net/socket.c:714 [inline]\n [] sock_sendmsg+0x56/0x80 net/socket.c:734\n [] ____sys_sendmsg+0x36c/0x390 net/socket.c:2482\n [] ___sys_sendmsg+0xa8/0x110 net/socket.c:2536\n [] __sys_sendmsg+0x88/0x100 net/socket.c:2565\n [] do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n [] entry_SYSCALL_64_after_hwframe+0x63/0xcd" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: limpia la lista de ganchos cuando falla la verificaci\u00f3n de indicadores de descarga, vuelve a unir la lista de ganchos para que nft_chain_release_hook() tenga la oportunidad de liberar los ganchos. ERROR: p\u00e9rdida de memoria objeto sin referencia 0xffff88810180b100 (tama\u00f1o 96): comunicaci\u00f3n \"syz-executor133\", pid 3619, jiffies 4294945714 (edad 12.690 s) volcado hexadecimal (primeros 32 bytes): 28 64 23 02 81 88 ff ff 28 64 02 81 88 ff ff (d#.....(d#..... 90 a8 aa 83 ff ff ff ff 00 00 b5 0f 81 88 ff ff ................ retroceso : [] kmalloc include/linux/slab.h:600 [en l\u00ednea] [] nft_netdev_hook_alloc+0x3b/0xc0 net/netfilter/nf_tables_api.c:1901 [] netdev net/netfilter/nf_tables_api. c:1998 [en l\u00ednea] [] nft_chain_parse_hook+0x33a/0x530 net/netfilter/nf_tables_api.c:2073 [] nf_tables_addchain.constprop.0+0x10b/0x950 f_tables_api.c:2218 [< ffffffff83a9c41b>] nf_tables_newchain+0xa8b/0xc60 net/netfilter/nf_tables_api.c:2593 [] nfnetlink_rcv_batch+0xa46/0xd20 net/netfilter/nfnetlink.c:517 [] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c: 638 [en l\u00ednea] [] nfnetlink_rcv+0x1f9/0x220 net/netfilter/nfnetlink.c:656 [] netlink_unicast_kernel net/netlink/af_netlink.c:1319 [en l\u00ednea] [] emitir+0x397/ 0x4c0 net/netlink/af_netlink.c:1345 [] netlink_sendmsg+0x396/0x710 net/netlink/af_netlink.c:1921 [] sock_sendmsg_nosec net/socket.c:714 [en l\u00ednea] 65ab6>] sock_sendmsg+0x56/0x80 net/socket.c:734 [] ____sys_sendmsg+0x36c/0x390 net/socket.c:2482 [] ___sys_sendmsg+0xa8/0x110 36 [ ] __sys_sendmsg+0x88/0x100 net/socket.c:2565 [] do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea] [] do_syscall_64+0x35/0xb0 arch/x86/ent ry/com\u00fan .c:80 [] entrada_SYSCALL_64_after_hwframe+0x63/0xcd" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 3.6 }, { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW" }, "exploitabilityScore": 1.8, "impactScore": 3.4 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-401" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.143", "matchCriteriaId": "E77EECF5-C31E-4342-8014-AA844BB83A76" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.15.68", "matchCriteriaId": "C440CED2-FE3C-495D-839C-857FFC6F523A" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "5.19.9", "matchCriteriaId": "B4895A99-6E1B-4C76-A510-FDED00AD7D29" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1ce55ec5cb7c573c983dffbe290b8d17caf1f157", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/77972a36ecc4db7fc7c68f0e80714263c5f03f65", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/910891a2a44cdc49efcc4fe7459c1085ba00d0f4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/94ed8eeb8d9aeb00e4f4e19b83a2e28b6442fbc5", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/1ce55ec5cb7c573c983dffbe290b8d17caf1f157", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/77972a36ecc4db7fc7c68f0e80714263c5f03f65", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/910891a2a44cdc49efcc4fe7459c1085ba00d0f4", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/94ed8eeb8d9aeb00e4f4e19b83a2e28b6442fbc5", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] } ] }