CVE-2024-26834

{"id": "CVE-2024-26834", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-04-17T10:15:09.617", "references": [{"url": "https://git.kernel.org/stable/c/13b57b5cd591d5b22f9bbf047b2922967de411f3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2d17cf10179a7de6d8f0128168b84ad0b4a1863f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8762785f459be1cfe6fcf7285c123aad6a3703f0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9256ab9232e35a16af9c30fa4e522e6d1bd3605a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a6cafdb49a7bbf4a88367db209703eee6941e023", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/13b57b5cd591d5b22f9bbf047b2922967de411f3", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/2d17cf10179a7de6d8f0128168b84ad0b4a1863f", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/8762785f459be1cfe6fcf7285c123aad6a3703f0", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/9256ab9232e35a16af9c30fa4e522e6d1bd3605a", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/a6cafdb49a7bbf4a88367db209703eee6941e023", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_flow_offload: release dst in case direct xmit path is used\n\nDirect xmit does not use it since it calls dev_queue_xmit() to send\npackets, hence it calls dst_release().\n\nkmemleak reports:\n\nunreferenced object 0xffff88814f440900 (size 184):\n comm \"softirq\", pid 0, jiffies 4294951896\n hex dump (first 32 bytes):\n 00 60 5b 04 81 88 ff ff 00 e6 e8 82 ff ff ff ff .`[.............\n 21 0b 50 82 ff ff ff ff 00 00 00 00 00 00 00 00 !.P.............\n backtrace (crc cb2bf5d6):\n [<000000003ee17107>] kmem_cache_alloc+0x286/0x340\n [<0000000021a5de2c>] dst_alloc+0x43/0xb0\n [<00000000f0671159>] rt_dst_alloc+0x2e/0x190\n [<00000000fe5092c9>] __mkroute_output+0x244/0x980\n [<000000005fb96fb0>] ip_route_output_flow+0xc0/0x160\n [<0000000045367433>] nf_ip_route+0xf/0x30\n [<0000000085da1d8e>] nf_route+0x2d/0x60\n [<00000000d1ecd1cb>] nft_flow_route+0x171/0x6a0 [nft_flow_offload]\n [<00000000d9b2fb60>] nft_flow_offload_eval+0x4e8/0x700 [nft_flow_offload]\n [<000000009f447dbb>] expr_call_ops_eval+0x53/0x330 [nf_tables]\n [<00000000072e1be6>] nft_do_chain+0x17c/0x840 [nf_tables]\n [<00000000d0551029>] nft_do_chain_inet+0xa1/0x210 [nf_tables]\n [<0000000097c9d5c6>] nf_hook_slow+0x5b/0x160\n [<0000000005eccab1>] ip_forward+0x8b6/0x9b0\n [<00000000553a269b>] ip_rcv+0x221/0x230\n [<00000000412872e5>] __netif_receive_skb_one_core+0xfe/0x110"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nft_flow_offload: libera dst en caso de que se use la ruta de xmit directa Direct xmit no la usa ya que llama a dev_queue_xmit() para enviar paquetes, por lo tanto llama a dst_release(). informes kmemleak: objeto sin referencia 0xffff88814f440900 (tama\u00f1o 184): comm \"softirq\", pid 0, jiffies 4294951896 volcado hexadecimal (primeros 32 bytes): 00 60 5b 04 81 88 ff ff 00 e6 e8 82 ff ff ff ff .`[.. ........... 21 0b 50 82 ff ff ff ff 00 00 00 00 00 00 00 00 !.P................. retroceso (crc cb2bf5d6): [ &lt;000000003ee17107&gt;] kmem_cache_alloc+0x286/0x340 [&lt;0000000021a5de2c&gt;] dst_alloc+0x43/0xb0 [&lt;00000000f0671159&gt;] rt_dst_alloc+0x2e/0x190 [&lt;00000000fe50 92c9&gt;] __mkroute_output+0x244/0x980 [&lt;000000005fb96fb0&gt;] ip_route_output_flow+0xc0/0x160 [ &lt;0000000045367433&gt;] nf_ip_route+0xf/0x30 [&lt;0000000085da1d8e&gt;] nf_route+0x2d/0x60 [&lt;00000000d1ecd1cb&gt;] nft_flow_route+0x171/0x6a0 [nft_flow_offload] 0000d9b2fb60&gt;] nft_flow_offload_eval+0x4e8/0x700 [nft_flow_offload] [&lt;000000009f447dbb&gt;] expr_call_ops_eval+0x53/0x330 [nf_tables] [&lt;00000000072e1be6&gt;] nft_do_chain+0x17c/0x840 [nf_tables] [&lt;00000000d0551029&gt;] nft_do_chain_inet+0xa1/0x210 [nf_tables] [ &lt;0000000097c9d5c6&gt;] nf_hook_slow+0x5b/0x160 [&lt;0000000005eccab1&gt;] ip_forward +0x8b6/0x9b0 [&lt;00000000553a269b&gt;] ip_rcv+0x221/0x230 [&lt;00000000412872e5&gt;] __netif_receive_skb_one_core+0xfe/0x110"}], "lastModified": "2025-04-02T13:18:50.803", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A0B51637-34FC-474F-8640-2361C61E7DD2", "versionEndExcluding": "6.6.19", "versionStartIncluding": "6.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "575EE16B-67F2-4B5B-B5F8-1877715C898B", "versionEndExcluding": "6.7.7", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F02056A5-B362-4370-9FF8-6F0BD384D520"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "62075ACE-B2A0-4B16-829D-B3DA5AE5CC41"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A780F817-2A77-4130-A9B7-5C25606314E3"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}