CVE-2024-26851
Vulnerability from cvelistv5
Published
2024-04-17 10:17
Modified
2024-11-05 09:16
Severity ?
Summary
netfilter: nf_conntrack_h323: Add protection for bmp length out of range
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/014a807f1cc9c9d5173c1cd935835553b00d211c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39001e3c42000e7c2038717af0d33c32319ad591
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4bafcc43baf7bcf93566394dbd15726b5b456b7a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/767146637efc528b5e3d31297df115e85a2fd362
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80ee5054435a11c87c9a4f30f1ff750080c96416
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/98db42191329c679f4ca52bec0b319689e1ad8cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3c0f553820516ad4b62a9390ecd28d6f73a7b13
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccd1108b16ab572d9bf635586b0925635dbd6bbc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/014a807f1cc9c9d5173c1cd935835553b00d211c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/39001e3c42000e7c2038717af0d33c32319ad591
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4bafcc43baf7bcf93566394dbd15726b5b456b7a
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/767146637efc528b5e3d31297df115e85a2fd362
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/80ee5054435a11c87c9a4f30f1ff750080c96416
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/98db42191329c679f4ca52bec0b319689e1ad8cb
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b3c0f553820516ad4b62a9390ecd28d6f73a7b13
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ccd1108b16ab572d9bf635586b0925635dbd6bbc
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Impacted products
Vendor Product Version
Linux Linux Version: 2.6.17
Show details on NVD website

To clipboard 

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It will change into negative after several loop.\\nUBSAN load could detect a negative shift as an undefined behaviour\\nand reports exception.\\nSo we add the protection to avoid the length exceeding 32. Or else\\nit will return out of range error and stop decoding.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: nf_conntrack_h323: Agregar protecci\u00f3n para longitud de bmp fuera de rango La carga de UBSAN informa una excepci\u00f3n de BRK#5515 SHIFT_ISSUE: desplazamientos bit a bit que est\u00e1n fuera de los l\u00edmites para su tipo de datos. vmlinux get_bitmap(b=75) + 712  vmlinux decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, nivel=134443100) + 1956  vmlinux decode_choice (base=0xFFFFFFD0080370F0, nivel=23843636) + 1216  vmlinux decode_seq(f=0xFFFFFFD0080371A8, nivel=134443500) + 812  vmlinux decode_choice(base =0xFFFFFFD008037280, nivel=0) + 1216  vmlinux DecodeRasMessage() + 304  vmlinux ras_help() + 684  vmlinux nf_confirm() + 188  Debido a datos anormales en skb-\u0026gt;data, la longitud del mapa de bits de la extensi\u00f3n excede 32 cuando se decodifica el mensaje ras y luego usa la longitud para realizar una operaci\u00f3n de cambio . Cambiar\u00e1 a negativo despu\u00e9s de varios bucles. La carga de UBSAN podr\u00eda detectar un cambio negativo como un comportamiento indefinido e informar una excepci\u00f3n. Por lo tanto, agregamos la protecci\u00f3n para evitar que la longitud exceda 32. 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}


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