193 lines
9.7 KiB
JSON
193 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-2023-52913",
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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": "2024-08-21T06:07:11.017Z",
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"datePublished": "2024-08-21T06:10:54.540Z",
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"dateUpdated": "2026-08-05T09:11:58.161Z"
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},
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"cna": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T09:11:58.161Z"
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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\ndrm/i915: Fix potential context UAFs\n\ngem_context_register() makes the context visible to userspace, and which\npoint a separate thread can trigger the I915_GEM_CONTEXT_DESTROY ioctl.\nSo we need to ensure that nothing uses the ctx ptr after this. And we\nneed to ensure that adding the ctx to the xarray is the *last* thing\nthat gem_context_register() does with the ctx pointer.\n\n[tursulin: Stable and fixes tags add/tidy.]\n(cherry picked from commit bed4b455cf5374e68879be56971c1da563bcd90c)"
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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 triggered through local DRM ioctls (I915_GEM_CONTEXT_CREATE_EXT / I915_GEM_CONTEXT_DESTROY) on an i915 render node (/dev/dri/renderD*), not via network or adjacent protocols.\nAC:L - The attacker fully controls both sides of the race by issuing concurrent create and destroy ioctls on the same DRM file from multiple threads, and can retry until the post-xa_store use of ctx wins against context_close.\nPR:L - Both ioctls are marked DRM_RENDER_ALLOW and require only an open render node, which unprivileged local users routinely have on Intel GPU systems (desktop render group, ChromeOS, Android), not real root or init-namespace admin.\nUI:N - Exploitation requires no victim action; the attacker opens the render node and issues the racing ioctls themselves.\nS:U - Impact stays within the host kernel authority as a local privilege-escalation style memory-corruption bug; it does not cross VM, IOMMU, or other security boundaries.\nC:H - This is a use-after-free of struct i915_gem_context (freed via context_close -> kref_put -> kfree_rcu), which per scoring guidance enables reclaim and arbitrary kernel read primitives.\nI:H - The UAF races list_add against list_del/free on ctx client and global context lists, enabling heap corruption and write/control-flow hijack primitives consistent with High integrity impact for UAFs.\nA:H - Use-after-free of the GEM context reliably yields kernel oops/panic or list corruption crashes even when not fully exploited for code execution."
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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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"drivers/gpu/drm/i915/gem/i915_gem_context.c"
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],
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"versions": [
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{
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"version": "eb4dedae920a07c485328af3da2202ec5184fb17",
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"status": "affected",
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},
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{
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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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"drivers/gpu/drm/i915/gem/i915_gem_context.c"
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],
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"versions": [
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{
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"version": "5.10",
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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": "5.10",
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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": "5.15.171",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.7",
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"lessThanOrEqual": "6.1.*",
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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": "6.2",
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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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"versionStartIncluding": "5.10",
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"versionEndExcluding": "5.15.171"
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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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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/ae278887193110dfeb857ea63e243a3851fbb0bc"
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},
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{
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"url": "https://git.kernel.org/stable/c/b696c627b3f56e173f7f70b8487d66da8ff22506"
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},
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{
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"url": "https://git.kernel.org/stable/c/afce71ff6daa9c0f852df0727fe32c6fb107f0fa"
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}
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],
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"title": "drm/i915: Fix potential context UAFs",
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"x_generator": {
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"engine": "bippy-1.2.0"
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"metrics": [
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-52913",
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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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"Technical Impact": "partial"
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"version": "2.0.3",
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"timestamp": "2024-09-10T15:34:42.812004Z"
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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