CVE-2024-50142

{"id": "CVE-2024-50142", "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": "2024-11-07T10:15:06.170", "references": [{"url": "https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "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\nxfrm: validate new SA's prefixlen using SA family when sel.family is unset\n\nThis expands the validation introduced in commit 07bf7908950a (\"xfrm:\nValidate address prefix lengths in the xfrm selector.\")\n\nsyzbot created an SA with\n usersa.sel.family = AF_UNSPEC\n usersa.sel.prefixlen_s = 128\n usersa.family = AF_INET\n\nBecause of the AF_UNSPEC selector, verify_newsa_info doesn't put\nlimits on prefixlen_{s,d}. But then copy_from_user_state sets\nx->sel.family to usersa.family (AF_INET). Do the same conversion in\nverify_newsa_info before validating prefixlen_{s,d}, since that's how\nprefixlen is going to be used later on."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xfrm: validar el prefijo de la nueva SA usando la familia de SA cuando sel.family no est\u00e1 configurado Esto expande la validaci\u00f3n introducida en el commit 07bf7908950a (\"xfrm: validar las longitudes de prefijo de direcci\u00f3n en el selector xfrm\"). syzbot cre\u00f3 una SA con usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Debido al selector AF_UNSPEC, verificar_newsa_info no pone l\u00edmites en prefixlen_{s,d}. Pero luego copy_from_user_state establece x->sel.family en usersa.family (AF_INET). Realice la misma conversi\u00f3n en verificar_newsa_info antes de validar prefixlen_{s,d}, ya que as\u00ed es como se usar\u00e1 prefixlen m\u00e1s adelante."}], "lastModified": "2024-11-22T16:47:08.477", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "412BD203-5581-4B41-81A3-77F90DAD48A1", "versionEndExcluding": "4.19.323", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B5A89369-320F-47FC-8695-56F61F87E4C0", "versionEndExcluding": "5.4.285", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A03CABE-9B43-4E7F-951F-10DEEADAA426", "versionEndExcluding": "5.10.229", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A9BA1C73-2D2E-45E3-937B-276A28AEB5FC", "versionEndExcluding": "5.15.170", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C08A77A6-E42E-4EFD-B5A1-2BF6CBBB42AE", "versionEndExcluding": "6.1.115", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D15CA59-D15C-4ACD-8B03-A072DEAD2081", "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E4486B12-007B-4794-9857-F07145637AA1", "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E0F717D8-3014-4F84-8086-0124B2111379"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}