mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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48 lines
3.0 KiB
JSON
48 lines
3.0 KiB
JSON
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{
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"id": "CVE-2024-26851",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-04-17T11:15:08.473",
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"lastModified": "2024-04-17T11:15:08.473",
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"vulnStatus": "Received",
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_h323: Add protection for bmp length out of range\n\nUBSAN load reports an exception of BRK#5515 SHIFT_ISSUE:Bitwise shifts\nthat are out of bounds for their data type.\n\nvmlinux get_bitmap(b=75) + 712\n<net/netfilter/nf_conntrack_h323_asn1.c:0>\nvmlinux decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, level=134443100) + 1956\n<net/netfilter/nf_conntrack_h323_asn1.c:592>\nvmlinux decode_choice(base=0xFFFFFFD0080370F0, level=23843636) + 1216\n<net/netfilter/nf_conntrack_h323_asn1.c:814>\nvmlinux decode_seq(f=0xFFFFFFD0080371A8, level=134443500) + 812\n<net/netfilter/nf_conntrack_h323_asn1.c:576>\nvmlinux decode_choice(base=0xFFFFFFD008037280, level=0) + 1216\n<net/netfilter/nf_conntrack_h323_asn1.c:814>\nvmlinux DecodeRasMessage() + 304\n<net/netfilter/nf_conntrack_h323_asn1.c:833>\nvmlinux ras_help() + 684\n<net/netfilter/nf_conntrack_h323_main.c:1728>\nvmlinux nf_confirm() + 188\n<net/netfilter/nf_conntrack_proto.c:137>\n\nDue to abnormal data in skb->data, the extension bitmap length\nexceeds 32 when decoding ras message then uses the length to make\na shift operation. 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."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/014a807f1cc9c9d5173c1cd935835553b00d211c",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/39001e3c42000e7c2038717af0d33c32319ad591",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/4bafcc43baf7bcf93566394dbd15726b5b456b7a",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/767146637efc528b5e3d31297df115e85a2fd362",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/80ee5054435a11c87c9a4f30f1ff750080c96416",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/98db42191329c679f4ca52bec0b319689e1ad8cb",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/b3c0f553820516ad4b62a9390ecd28d6f73a7b13",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/ccd1108b16ab572d9bf635586b0925635dbd6bbc",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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}
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