298 lines
16 KiB
JSON
298 lines
16 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2023-53481",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2025-10-01T11:39:39.402Z",
|
|
"datePublished": "2025-10-01T11:42:49.825Z",
|
|
"dateUpdated": "2026-10-15T21:41:28.594Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T09:14:17.891Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed\n\nFollowing process will trigger an infinite loop in ubi_wl_put_peb():\n\n\tubifs_bgt\t\tubi_bgt\nubifs_leb_unmap\n ubi_leb_unmap\n ubi_eba_unmap_leb\n ubi_wl_put_peb\twear_leveling_worker\n e1 = rb_entry(rb_first(&ubi->used)\n\t\t\t e2 = get_peb_for_wl(ubi)\n\t\t\t ubi_io_read_vid_hdr // return err (flash fault)\n\t\t\t out_error:\n\t\t\t ubi->move_from = ubi->move_to = NULL\n\t\t\t wl_entry_destroy(ubi, e1)\n\t\t\t ubi->lookuptbl[e->pnum] = NULL\n retry:\n e = ubi->lookuptbl[pnum];\t// return NULL\n\tif (e == ubi->move_from) {\t// NULL == NULL gets true\n\t goto retry;\t\t\t// infinite loop !!!\n\n$ top\n PID USER PR NI VIRT RES SHR S %CPU %MEM COMMAND\n 7676 root 20 0 0 0 0 R 100.0 0.0 ubifs_bgt0_0\n\nFix it by:\n 1) Letting ubi_wl_put_peb() returns directly if wearl leveling entry has\n been removed from 'ubi->lookuptbl'.\n 2) Using 'ubi->wl_lock' protecting wl entry deletion to preventing an\n use-after-free problem for wl entry in ubi_wl_put_peb().\n\nFetch a reproducer in [Link]."
|
|
}
|
|
],
|
|
"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 path is reached only from local activity — file writes/unlinks on a mounted UBIFS filesystem driving `ubifs_leb_unmap()`, or `UBI_IOCEBER`/`UBI_IOCEBUNMAP` ioctls on `/dev/ubiX_Y`. There is no network-facing consumer of the UBI wear-leveling layer.\nAC:L - The attacker supplies both the concurrency (unbounded parallel LEB unmaps via ordinary filesystem writes/deletes or a tight ioctl loop) and sustained write pressure that keeps the wear-leveling worker running continuously on flash whose read/ECC errors are the expected operating condition UBI is built to handle; once the error path fires, the `NULL == ubi->move_from` comparison is deterministic, not probabilistic.\nPR:L - Any unprivileged local user with write access to a UBIFS mount (the standard writable data/rootfs partition on embedded, automotive and IoT devices) can drive `ubi_eba_unmap_leb()` through the UBIFS journal and background thread; the direct ioctl path has no capability check either, only `FMODE_WRITE` on the volume node.\nUI:N - Exploitation needs only the attacker's own file I/O or ioctls against an already-mounted UBI/UBIFS volume; no victim action, mount of attacker-supplied media, or administrator interaction is required.\nS:U - The hang and the freed-slab-object corruption are confined to the kernel's own security authority on the affected host, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The use-after-free on the `ubi_wl_entry_slab` object lets the attacker read fields (`e->pnum`, `e->ec`, rbtree links) out of memory that has been freed and can be reallocated with attacker-groomed content, giving a path to kernel memory disclosure.\nI:H - `rb_erase(&e->u.rb, &ubi->used)` and the subsequent `schedule_erase()` operate on the freed entry, writing rbtree pointer values through a dangling object and re-queuing it — a classic UAF write primitive usable for heap corruption and control-flow hijack.\nA:H - The `goto retry` loop never terminates, pinning a CPU at 100% in an unkillable kernel thread while holding `ubi->fm_protect` and the LEB write lock, which permanently hangs all I/O to the UBI device and its UBIFS filesystems until reboot; the concurrent UAF independently causes kernel crashes."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/mtd/ubi/wl.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "b40d2fbf47af58377e898b5062077a47bb28a132",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "f006f596fe851c3b6aae60b79f89f89f0e515d2f",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "b5be23f6ae610bdb262160a1f294afee6d0e6a69",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "8a18856e074479bd050b01e688c58defadce7ab0",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "3afaaf6f5867dc4ad383808d4053f428ec7b867d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "cc4bc532acda66189bddc03b3fe1ad689d9a48a2",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "5af1c643184a5d09ff5b3f334077a4d0a163c677",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "43f9b25a9cdd7b177f77f026b1461abd1abbd174",
|
|
"lessThan": "4d57a7333e26040f2b583983e1970d9d460e56b0",
|
|
"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/mtd/ubi/wl.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "2.6.25",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "2.6.25",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "4.14.308",
|
|
"lessThanOrEqual": "4.14.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "4.19.276",
|
|
"lessThanOrEqual": "4.19.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.4.235",
|
|
"lessThanOrEqual": "5.4.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.173",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"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": "2.6.25",
|
|
"versionEndExcluding": "4.14.308"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.25",
|
|
"versionEndExcluding": "4.19.276"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.25",
|
|
"versionEndExcluding": "5.4.235"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.25",
|
|
"versionEndExcluding": "5.10.173"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.25",
|
|
"versionEndExcluding": "5.15.100"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.25",
|
|
"versionEndExcluding": "6.1.18"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.25",
|
|
"versionEndExcluding": "6.2.5"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "2.6.25",
|
|
"versionEndExcluding": "6.3"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/b40d2fbf47af58377e898b5062077a47bb28a132"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f006f596fe851c3b6aae60b79f89f89f0e515d2f"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/b5be23f6ae610bdb262160a1f294afee6d0e6a69"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/8a18856e074479bd050b01e688c58defadce7ab0"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/3afaaf6f5867dc4ad383808d4053f428ec7b867d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/cc4bc532acda66189bddc03b3fe1ad689d9a48a2"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/5af1c643184a5d09ff5b3f334077a4d0a163c677"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/4d57a7333e26040f2b583983e1970d9d460e56b0"
|
|
}
|
|
],
|
|
"title": "ubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2023-53481",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-10-15T21:34:44.820023Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-10-15T21:41:28.594Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |