242 lines
13 KiB
JSON
242 lines
13 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2023-53214",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2025-09-15T14:19:21.845Z",
|
|
"datePublished": "2025-09-15T14:21:42.331Z",
|
|
"dateUpdated": "2026-08-05T09:13:07.520Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T09:13:07.520Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential memory corruption in __update_iostat_latency()\n\nAdd iotype sanity check to avoid potential memory corruption.\nThis is to fix the compile error below:\n\nfs/f2fs/iostat.c:231 __update_iostat_latency() error: buffer overflow\n'io_lat->peak_lat[type]' 3 <= 3\n\nvim +228 fs/f2fs/iostat.c\n\n 211 static inline void __update_iostat_latency(struct bio_iostat_ctx\n\t*iostat_ctx,\n 212\t\t\t\t\tenum iostat_lat_type type)\n 213 {\n 214\t\tunsigned long ts_diff;\n 215\t\tunsigned int page_type = iostat_ctx->type;\n 216\t\tstruct f2fs_sb_info *sbi = iostat_ctx->sbi;\n 217\t\tstruct iostat_lat_info *io_lat = sbi->iostat_io_lat;\n 218\t\tunsigned long flags;\n 219\n 220\t\tif (!sbi->iostat_enable)\n 221\t\t\treturn;\n 222\n 223\t\tts_diff = jiffies - iostat_ctx->submit_ts;\n 224\t\tif (page_type >= META_FLUSH)\n ^^^^^^^^^^\n\n 225\t\t\tpage_type = META;\n 226\n 227\t\tspin_lock_irqsave(&sbi->iostat_lat_lock, flags);\n @228\t\tio_lat->sum_lat[type][page_type] += ts_diff;\n ^^^^^^^^^\nMixup between META_FLUSH and NR_PAGE_TYPE leads to memory corruption."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 7,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The vulnerable path runs in f2fs bio completion (`f2fs_write_end_io`/`f2fs_read_end_io` → `iostat_update_and_unbind_ctx` → `__update_iostat_latency`) after ordinary local file I/O on an f2fs volume (e.g. Android userdata); it is not reachable via network protocols or adjacent-link frames.\nAC:H - Corruption requires `iostat_enable` (defaults false) and `iostat_ctx->type == NR_PAGE_TYPE`, but every submit site only passes DATA/NODE/META/META_FLUSH and META_FLUSH is already remapped by the old `>= META_FLUSH` check, so the out-of-bounds index is not attacker-influencable.\nPR:L - In the worst reasonable deployment (f2fs already mounted, iostat enabled for diagnostics as the feature intends), unprivileged local users/apps can issue reads/writes that drive bio completion through the vulnerable function without needing init-namespace root.\nUI:N - On typical f2fs deployments such as Android userdata the filesystem is already mounted, and the attacker triggers I/O themselves with no separate victim action required.\nS:U - Impact is confined to host kernel heap/state within the same OS security authority; there is no VM escape, IOMMU bypass, or sandbox boundary crossing.\nC:H - When the bad index is used with WRITE_ASYNC_IO, `bio_cnt[idx][iotype]++` performs a read-modify-write one `unsigned int` past the kmalloc'd `iostat_lat_info`, which per OOB/memory-corruption guidance can be leveraged for disclosure of adjacent heap contents.\nI:H - The same path is a real heap out-of-bounds write (and in-object corruption of `peak_lat`/`bio_cnt`), which per kernel CVSS guidance for OOB writes is Integrity High and can yield write/control-flow primitives.\nA:H - Heap corruption adjacent to `iostat_io_lat` can cause kernel oops/panic when corrupted neighboring objects are later used, matching Availability High for memory-corruption crashes."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"fs/f2fs/iostat.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
|
|
"lessThan": "aa4d726af72a21732ce120484e0b1240674a13b3",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
|
|
"lessThan": "22ddbbff116ee7dce5431feb1c0f36a507d2d68d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
|
|
"lessThan": "20b4f3de0f3932f71b4a8daf0671e517a8d98022",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a4b6817625e71d5d4aee16cacf7a7fec077c6dbe",
|
|
"lessThan": "0dbbf0fb38d5ec5d4138d1aeaeb43d9217b9a592",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"fs/f2fs/iostat.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.15",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.15",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.100",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.18",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.2.5",
|
|
"lessThanOrEqual": "6.2.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.3",
|
|
"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": "5.15",
|
|
"versionEndExcluding": "5.15.100"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.15",
|
|
"versionEndExcluding": "6.1.18"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.15",
|
|
"versionEndExcluding": "6.2.5"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.15",
|
|
"versionEndExcluding": "6.3"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/aa4d726af72a21732ce120484e0b1240674a13b3"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/22ddbbff116ee7dce5431feb1c0f36a507d2d68d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/20b4f3de0f3932f71b4a8daf0671e517a8d98022"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0dbbf0fb38d5ec5d4138d1aeaeb43d9217b9a592"
|
|
}
|
|
],
|
|
"title": "f2fs: fix to avoid potential memory corruption in __update_iostat_latency()",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"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"
|
|
}
|
|
},
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2023-53214",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-01-14T17:48:59.388842Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"type": "CWE",
|
|
"cweId": "CWE-787",
|
|
"description": "CWE-787 Out-of-bounds Write"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-01-14T17:52:57.442Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |