203 lines
9.7 KiB
JSON
203 lines
9.7 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2023-52760",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-05-21T15:19:24.237Z",
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"datePublished": "2024-05-21T15:30:46.427Z",
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"dateUpdated": "2026-08-05T09:11:15.944Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T09:11:15.944Z"
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},
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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vulnerability has been resolved:\n\ngfs2: Fix slab-use-after-free in gfs2_qd_dealloc\n\nIn gfs2_put_super(), whether withdrawn or not, the quota should\nbe cleaned up by gfs2_quota_cleanup().\n\nOtherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu\ncallback) has run for all gfs2_quota_data objects, resulting in\nuse-after-free.\n\nAlso, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called\nby gfs2_make_fs_ro(), so in gfs2_put_super(), after calling\ngfs2_make_fs_ro(), there is no need to call them again."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The bug is reached via local mount/umount and quotactl on a GFS2 block device (loop or disk) with lock_nolock; it is not reachable from the network stack or remote protocols.\nAC:L - A local attacker who can mount a GFS2 image read-only, create quota_data via quotactl, and unmount reliably hits the missing gfs2_quota_cleanup path; a public C repro exists and no uncontrolled race is required.\nPR:L - Triggering requires only the ability to mount/unmount a local GFS2 filesystem and issue quotactl (own-uid Q_GETQUOTA needs no CAP_SYS_ADMIN); consistent with other local GFS2 CVEs scored PR:L, choosing the higher-severity option over PR:H.\nUI:N - The attacker performs mount, quotactl, and umount themselves; no separate victim action is required.\nS:U - Impact is confined to the local kernel authority (memory corruption / privilege escalation within the host); this is not a VM, IOMMU, or sandbox boundary escape.\nC:H - This is a slab use-after-free write against the freed gfs2_sbd object from an RCU callback, which can be leveraged to corrupt adjacent heap objects and obtain arbitrary read primitives.\nI:H - The UAF write (atomic_dec_and_test on freed sdp->sd_quota_count, plus wake_up) enables heap corruption and control-flow hijacking primitives typical of kernel slab UAFs.\nA:H - The use-after-free reliably causes KASAN-detectable corruption and can oops/panic the kernel during unmount softirq RCU processing."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/gfs2/super.c"
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],
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"versions": [
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{
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"version": "f66af88e33212b57ea86da2c5d66c0d9d5c46344",
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"lessThan": "08a28272faa750d4357ea2cb48d2baefd778ea81",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "f66af88e33212b57ea86da2c5d66c0d9d5c46344",
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"lessThan": "bdcb8aa434c6d36b5c215d02a9ef07551be25a37",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/gfs2/super.c"
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],
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"versions": [
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{
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"version": "6.6",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.6",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.3",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.7",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6",
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"versionEndExcluding": "6.6.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6",
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"versionEndExcluding": "6.7"
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/08a28272faa750d4357ea2cb48d2baefd778ea81"
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},
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{
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"url": "https://git.kernel.org/stable/c/bdcb8aa434c6d36b5c215d02a9ef07551be25a37"
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}
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],
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"title": "gfs2: Fix slab-use-after-free in gfs2_qd_dealloc",
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"x_generator": {
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"engine": "bippy-1.2.0"
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"adp": [
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{
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"title": "CISA ADP Vulnrichment",
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-52760",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-05-22T18:26:22.936431Z"
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}
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-06-04T17:24:04.103Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/7ad4e0a4f61c57c3ca291ee010a9d677d0199fba",
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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} |