248 lines
13 KiB
JSON
248 lines
13 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2024-35787",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2024-05-17T12:19:12.338Z",
|
|
"datePublished": "2024-05-17T12:24:35.137Z",
|
|
"dateUpdated": "2026-08-05T11:29:55.072Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T11:29:55.072Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/md-bitmap: fix incorrect usage for sb_index\n\nCommit d7038f951828 (\"md-bitmap: don't use ->index for pages backing the\nbitmap file\") removed page->index from bitmap code, but left wrong code\nlogic for clustered-md. current code never set slot offset for cluster\nnodes, will sometimes cause crash in clustered env.\n\nCall trace (partly):\n md_bitmap_file_set_bit+0x110/0x1d8 [md_mod]\n md_bitmap_startwrite+0x13c/0x240 [md_mod]\n raid1_make_request+0x6b0/0x1c08 [raid1]\n md_handle_request+0x1dc/0x368 [md_mod]\n md_submit_bio+0x80/0xf8 [md_mod]\n __submit_bio+0x178/0x300\n submit_bio_noacct_nocheck+0x11c/0x338\n submit_bio_noacct+0x134/0x614\n submit_bio+0x28/0xdc\n submit_bh_wbc+0x130/0x1cc\n submit_bh+0x1c/0x28"
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 7.8,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The vulnerable code is reached through the local block-I/O path (`submit_bio` → `md_submit_bio` → `raid1_make_request` → `md_bitmap_startwrite`) on a clustered md array; no network protocol handler processes attacker data here.\nAC:L - On any cluster node whose slot is non-zero (every node but DLM slot 1), the index computation is unconditionally negative, so the out-of-bounds `set_bit()` fires on the first write to each bitmap chunk — deterministic, with no race and no memory-layout precondition the attacker cannot influence.\nPR:L - Clustered md arrays are deployed under shared filesystems (GFS2/OCFS2), so any unprivileged local user with write access to a file generates the bios that reach `md_bitmap_startwrite`; there is no capability check on the path from `write()` to `md_bitmap_file_set_bit()`.\nUI:N - The attacker simply issues writes to the array; no action by any other user or administrator is needed at exploitation time.\nS:U - The corrupted memory is kernel slab memory belonging to the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `md_bitmap_file_clear_bit()` performs an out-of-bounds `test_page_attr()` read before the `filemap_attr` allocation, and the resulting slab corruption is a general heap-corruption primitive that can be leveraged to disclose kernel memory.\nI:H - `set_bit()` with a negative bit number writes into slab memory preceding the `filemap_attr` buffer at an offset the attacker steers by choosing the written file offset, giving a controlled OOB bit-set usable for heap corruption; additionally the write-intent bitmap is never marked dirty, so the on-disk bitmap goes stale and RAID resync produces inconsistent data.\nA:H - The commit states the bug \"will sometimes cause crash in clustered env\" and includes an oops trace through `md_bitmap_file_set_bit`; slab corruption from repeated OOB writes readily panics the node."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/md/md-bitmap.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "d7038f951828da19fa9aafddfa087b69032c9687",
|
|
"lessThan": "736ad6c577a367834118f57417038d45bb5e0a31",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d7038f951828da19fa9aafddfa087b69032c9687",
|
|
"lessThan": "55e55eb65fd5e09faf5a0e49ffcdd37905aaf4da",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d7038f951828da19fa9aafddfa087b69032c9687",
|
|
"lessThan": "5a95815b17428ce2f56ec18da5e0d1b2a1a15240",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d7038f951828da19fa9aafddfa087b69032c9687",
|
|
"lessThan": "ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/md/md-bitmap.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "6.6",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "6.6",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.24",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.7.12",
|
|
"lessThanOrEqual": "6.7.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.8.3",
|
|
"lessThanOrEqual": "6.8.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.9",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.6",
|
|
"versionEndExcluding": "6.6.24"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.6",
|
|
"versionEndExcluding": "6.7.12"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.6",
|
|
"versionEndExcluding": "6.8.3"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.6",
|
|
"versionEndExcluding": "6.9"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/736ad6c577a367834118f57417038d45bb5e0a31"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4da"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06"
|
|
}
|
|
],
|
|
"title": "md/md-bitmap: fix incorrect usage for sb_index",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2024-06-12T15:19:46.019142Z",
|
|
"id": "CVE-2024-35787",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2024-06-12T15:20:01.240Z"
|
|
}
|
|
},
|
|
{
|
|
"providerMetadata": {
|
|
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
|
"shortName": "CVE",
|
|
"dateUpdated": "2024-08-02T03:21:47.386Z"
|
|
},
|
|
"title": "CVE Program Container",
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/736ad6c577a367834118f57417038d45bb5e0a31",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4da",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
} |