CVE-2024-42136

{"id": "CVE-2024-42136", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2024-07-30T08:15:05.507", "references": [{"url": "https://git.kernel.org/stable/c/0c97527e916054acc4a46ffb02842988acb2e92b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3ee21e14c8c329168a0b66bab00ecd18f5d0dee3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e809bc112712da8f7e15822674c6562da6cdf24c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/efb905aeb44b0e99c0e6b07865b1885ae0471ebf", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncdrom: rearrange last_media_change check to avoid unintentional overflow\n\nWhen running syzkaller with the newly reintroduced signed integer wrap\nsanitizer we encounter this splat:\n\n[ 366.015950] UBSAN: signed-integer-overflow in ../drivers/cdrom/cdrom.c:2361:33\n[ 366.021089] -9223372036854775808 - 346321 cannot be represented in type '__s64' (aka 'long long')\n[ 366.025894] program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO\n[ 366.027502] CPU: 5 PID: 28472 Comm: syz-executor.7 Not tainted 6.8.0-rc2-00035-gb3ef86b5a957 #1\n[ 366.027512] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[ 366.027518] Call Trace:\n[ 366.027523] <TASK>\n[ 366.027533] dump_stack_lvl+0x93/0xd0\n[ 366.027899] handle_overflow+0x171/0x1b0\n[ 366.038787] ata1.00: invalid multi_count 32 ignored\n[ 366.043924] cdrom_ioctl+0x2c3f/0x2d10\n[ 366.063932] ? __pm_runtime_resume+0xe6/0x130\n[ 366.071923] sr_block_ioctl+0x15d/0x1d0\n[ 366.074624] ? __pfx_sr_block_ioctl+0x10/0x10\n[ 366.077642] blkdev_ioctl+0x419/0x500\n[ 366.080231] ? __pfx_blkdev_ioctl+0x10/0x10\n...\n\nHistorically, the signed integer overflow sanitizer did not work in the\nkernel due to its interaction with `-fwrapv` but this has since been\nchanged [1] in the newest version of Clang. It was re-enabled in the\nkernel with Commit 557f8c582a9ba8ab (\"ubsan: Reintroduce signed overflow\nsanitizer\").\n\nLet's rearrange the check to not perform any arithmetic, thus not\ntripping the sanitizer."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cdrom: reorganice la verificaci\u00f3n de last_media_change para evitar un desbordamiento involuntario. Al ejecutar syzkaller con el sanitizador de ajuste de enteros firmado recientemente reintroducido, nos encontramos con este s\u00edmbolo: [366.015950] UBSAN: desbordamiento de enteros firmados en .. /drivers/cdrom/cdrom.c:2361:33 [ 366.021089] -9223372036854775808 - 346321 no se puede representar en el tipo '__s64' (tambi\u00e9n conocido como 'long long') [ 366.025894] El programa syz-executor.4 est\u00e1 utilizando un ioctl SCSI obsoleto, convi\u00e9rtalo a SG_IO [366.027502] CPU: 5 PID: 28472 Comm: syz-executor.7 Not tainted 6.8.0-rc2-00035-gb3ef86b5a957 #1 [366.027512] Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996) , BIOS 1.16.3-debian-1.16.3-2 01/04/2014 [ 366.027518] Seguimiento de llamadas: [ 366.027523] [ 366.027533] dump_stack_lvl+0x93/0xd0 [ 366.027899] 1b0 [366.038787] ata1 .00: \u00bfmulti_count 32 no v\u00e1lido se ignora [366.043924] cdrom_ioctl+0x2c3f/0x2d10 [366.063932]? __pm_runtime_resume+0xe6/0x130 [ 366.071923] sr_block_ioctl+0x15d/0x1d0 [ 366.074624] ? __pfx_sr_block_ioctl+0x10/0x10 [ 366.077642] blkdev_ioctl+0x419/0x500 [ 366.080231] ? __pfx_blkdev_ioctl+0x10/0x10 ... Hist\u00f3ricamente, el sanitizador de desbordamiento de enteros con signo no funcionaba en el kernel debido a su interacci\u00f3n con `-fwrapv` pero desde entonces esto se ha cambiado [1] en la versi\u00f3n m\u00e1s reciente de Clang. Se volvi\u00f3 a habilitar en el kernel con el compromiso 557f8c582a9ba8ab (\"ubsan: reintroducir el sanitizadorde desbordamiento firmado\"). Reorganicemos la verificaci\u00f3n para no realizar ninguna aritm\u00e9tica y as\u00ed no activar el sanitizador."}], "lastModified": "2024-09-16T13:54:41.923", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "59AC0B46-8C0D-4C0B-9705-C8CFF0DCAD00", "versionEndExcluding": "6.1.98"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29E894E4-668F-4DB0-81F7-4FB5F698E970", "versionEndExcluding": "6.6.39", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ADCC1407-0CB3-4C8F-B4C5-07F682CD7085", "versionEndExcluding": "6.9.9", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}