cve-2022-49017
Vulnerability from cvelistv5
Published
2024-10-21 20:06
Modified
2024-12-19 08:12
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: tipc: re-fetch skb cb after tipc_msg_validate As the call trace shows, the original skb was freed in tipc_msg_validate(), and dereferencing the old skb cb would cause an use-after-free crash. BUG: KASAN: use-after-free in tipc_crypto_rcv_complete+0x1835/0x2240 [tipc] Call Trace: <IRQ> tipc_crypto_rcv_complete+0x1835/0x2240 [tipc] tipc_crypto_rcv+0xd32/0x1ec0 [tipc] tipc_rcv+0x744/0x1150 [tipc] ... Allocated by task 47078: kmem_cache_alloc_node+0x158/0x4d0 __alloc_skb+0x1c1/0x270 tipc_buf_acquire+0x1e/0xe0 [tipc] tipc_msg_create+0x33/0x1c0 [tipc] tipc_link_build_proto_msg+0x38a/0x2100 [tipc] tipc_link_timeout+0x8b8/0xef0 [tipc] tipc_node_timeout+0x2a1/0x960 [tipc] call_timer_fn+0x2d/0x1c0 ... Freed by task 47078: tipc_msg_validate+0x7b/0x440 [tipc] tipc_crypto_rcv_complete+0x4b5/0x2240 [tipc] tipc_crypto_rcv+0xd32/0x1ec0 [tipc] tipc_rcv+0x744/0x1150 [tipc] This patch fixes it by re-fetching the skb cb from the new allocated skb after calling tipc_msg_validate().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1daec0815655e110c6f206c5e777a4af8168ff58Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3067bc61fcfe3081bf4807ce65560f499e895e77Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a1ba595e35aa3afbe417ff0af353afb9f65559c0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e128190adb2edfd5042105b5d1ed4553f295f5efPatch
Impacted products
Vendor Product Version
Linux Linux Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0
Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0
Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0
Version: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0
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   Linux Linux Version: 5.5
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                "id": "CVE-2022-49017",
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    "cveId": "CVE-2022-49017",
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    "dateReserved": "2024-08-22T01:27:53.646Z",
    "dateUpdated": "2024-12-19T08:12:31.241Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49017\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T20:15:12.910\",\"lastModified\":\"2024-10-24T18:36:13.233\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntipc: re-fetch skb cb after tipc_msg_validate\\n\\nAs the call trace shows, the original skb was freed in tipc_msg_validate(),\\nand dereferencing the old skb cb would cause an use-after-free crash.\\n\\n  BUG: KASAN: use-after-free in tipc_crypto_rcv_complete+0x1835/0x2240 [tipc]\\n  Call Trace:\\n   \u003cIRQ\u003e\\n   tipc_crypto_rcv_complete+0x1835/0x2240 [tipc]\\n   tipc_crypto_rcv+0xd32/0x1ec0 [tipc]\\n   tipc_rcv+0x744/0x1150 [tipc]\\n  ...\\n  Allocated by task 47078:\\n   kmem_cache_alloc_node+0x158/0x4d0\\n   __alloc_skb+0x1c1/0x270\\n   tipc_buf_acquire+0x1e/0xe0 [tipc]\\n   tipc_msg_create+0x33/0x1c0 [tipc]\\n   tipc_link_build_proto_msg+0x38a/0x2100 [tipc]\\n   tipc_link_timeout+0x8b8/0xef0 [tipc]\\n   tipc_node_timeout+0x2a1/0x960 [tipc]\\n   call_timer_fn+0x2d/0x1c0\\n  ...\\n  Freed by task 47078:\\n   tipc_msg_validate+0x7b/0x440 [tipc]\\n   tipc_crypto_rcv_complete+0x4b5/0x2240 [tipc]\\n   tipc_crypto_rcv+0xd32/0x1ec0 [tipc]\\n   tipc_rcv+0x744/0x1150 [tipc]\\n\\nThis patch fixes it by re-fetching the skb cb from the new allocated skb\\nafter calling tipc_msg_validate().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tipc: volver a obtener el skb cb despu\u00e9s de tipc_msg_validate Como muestra el seguimiento de la llamada, el skb original se liber\u00f3 en tipc_msg_validate(), y desreferenciar el antiguo skb cb causar\u00eda un bloqueo por use after free. ERROR: KASAN: use after free en tipc_crypto_rcv_complete+0x1835/0x2240 [tipc] Seguimiento de llamadas:  tipc_crypto_rcv_complete+0x1835/0x2240 [tipc] tipc_crypto_rcv+0xd32/0x1ec0 [tipc] tipc_rcv+0x744/0x1150 [tipc] ... Asignado por la tarea 47078: kmem_cache_alloc_node+0x158/0x4d0 __alloc_skb+0x1c1/0x270 tipc_buf_acquire+0x1e/0xe0 [tipc] tipc_msg_create+0x33/0x1c0 [tipc] tipc_link_build_proto_msg+0x38a/0x2100 [tipc] tipc_link_timeout+0x8b8/0xef0 [tipc] tipc_node_timeout+0x2a1/0x960 [tipc] call_timer_fn+0x2d/0x1c0 ... Liberado por la tarea 47078: tipc_msg_validate+0x7b/0x440 [tipc] tipc_crypto_rcv_complete+0x4b5/0x2240 [tipc] tipc_crypto_rcv+0xd32/0x1ec0 [tipc] tipc_rcv+0x744/0x1150 [tipc] Este parche lo corrige volviendo a obtener el cb skb del nuevo skb asignado despu\u00e9s de llamar a tipc_msg_validate().\"}],\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.158\",\"matchCriteriaId\":\"D0FB1AF1-0A0B-4419-B25F-C61F17380E18\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.82\",\"matchCriteriaId\":\"0DC20DB6-73C1-4465-B931-117BFB8EBB02\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.12\",\"matchCriteriaId\":\"D6D56E90-F3EE-413D-B3E2-B518932F0C7D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3FFFB0B3-930D-408A-91E2-BAE0C2715D80\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"8535320E-A0DB-4277-800E-D0CE5BBA59E8\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1daec0815655e110c6f206c5e777a4af8168ff58\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3067bc61fcfe3081bf4807ce65560f499e895e77\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a1ba595e35aa3afbe417ff0af353afb9f65559c0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e128190adb2edfd5042105b5d1ed4553f295f5ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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