CVE-2023-52662

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vulnerable GMR/MOB ID allocator is reached only via local DRM ioctls on the vmwgfx device (e.g. DRM_VMW_GB_SURFACE_CREATE / surface validate into VMW_PL_MOB), not via network packet processing.\nAC:L - An attacker can reliably exhaust the finite MOB/GMR ID space (~53K IDs) with repeated small surface/buffer allocations, after which each failed ida_alloc_max path leaks an LRU-linked resource under full attacker control.\nPR:L - The triggering ioctls are marked DRM_RENDER_ALLOW and are usable by an unprivileged local user with access to the DRM render node (/dev/dri/renderD*), without CAP_SYS_ADMIN or DRM master.\nUI:N - Exploitation requires only the attacker's own open/ioctl sequence against the render node; no action by another user is needed.\nS:U - Impact is confined to the guest kernel's TTM/DRM authority (memory leak and UAF in the same kernel); this does not cross a VM/host or other security boundary by itself.\nC:H - Skipping ttm_resource_fini leaves an orphaned ttm_resource on the manager LRU with a raw pointer to the BO; after the BO is freed, eviction/LRU walks (ttm_mem_evict_first) dereference the dangling res->bo, yielding a UAF that can be leveraged for arbitrary read.\nI:H - The same orphaned-LRU UAF against a freed BO is exploitable for heap reuse and write/control-flow hijacking primitives once the attacker triggers eviction after destroying the referenced buffer object.\nA:H - The UAF on LRU walk can oops/panic the kernel, and the unbounded per-failure leak of ttm_resource objects after ID exhaustion can also drive the system to OOM."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c"], "versions": [{"version": "d3bcb4b02fe977d6b7a82dbb6288e9223b5b6732", "lessThan": "03b1072616a8f7d6e8594f643b416a9467c83fbf", "status": "affected", "versionType": "git"}, {"version": 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The vulnerable GMR/MOB ID allocator is reached only via local DRM ioctls on the vmwgfx device (e.g. DRM_VMW_GB_SURFACE_CREATE / surface validate into VMW_PL_MOB), not via network packet processing.\nAC:L - An attacker can reliably exhaust the finite MOB/GMR ID space (~53K IDs) with repeated small surface/buffer allocations, after which each failed ida_alloc_max path leaks an LRU-linked resource under full attacker control.\nPR:L - The triggering ioctls are marked DRM_RENDER_ALLOW and are usable by an unprivileged local user with access to the DRM render node (/dev/dri/renderD*), without CAP_SYS_ADMIN or DRM master.\nUI:N - Exploitation requires only the attacker's own open/ioctl sequence against the render node; no action by another user is needed.\nS:U - Impact is confined to the guest kernel's TTM/DRM authority (memory leak and UAF in the same kernel); this does not cross a VM/host or other security boundary by itself.\nC:H - Skipping ttm_resource_fini leaves an orphaned ttm_resource on the manager LRU with a raw pointer to the BO; after the BO is freed, eviction/LRU walks (ttm_mem_evict_first) dereference the dangling res->bo, yielding a UAF that can be leveraged for arbitrary read.\nI:H - 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"matchCriteriaId": "9B95D3A6-E162-47D5-ABFC-F3FA74FA7CFD", "versionEndExcluding": "6.7.11", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "543A75FF-25B8-4046-A514-1EA8EDD87AB1", "versionEndExcluding": "6.8.2", "versionStartIncluding": "6.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: fix a memleak in vmw_gmrid_man_get_node\n\nWhen ida_alloc_max fails, resources allocated before should be freed,\nincluding *res allocated by kmalloc and ttm_resource_init."}, {"lang": "es", "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/vmwgfx: soluciona un memleak en vmw_gmrid_man_get_node Cuando falla ida_alloc_max, se deben liberar los recursos asignados anteriormente, incluido *res asignado por kmalloc y ttm_resource_init."}], "id": "CVE-2023-52662", "lastModified": "2026-08-04T10:18:36.773", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52662", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-17T17:16:26.923288Z", "version": "2.0.3"}}]}, "published": "2024-05-17T14:15:08.373", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/03b1072616a8f7d6e8594f643b416a9467c83fbf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/40624af6674745e174c754a20d7c53c250e65e7a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6fc6233f6db1579b69b54b44571f1a7fde8186e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/83e0f220d1e992fa074157fcf14945bf170ffbc5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/89709105a6091948ffb6ec2427954cbfe45358ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d1e546ab91c670e536a274a75481034ab7534876"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/03b1072616a8f7d6e8594f643b416a9467c83fbf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/40624af6674745e174c754a20d7c53c250e65e7a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6fc6233f6db1579b69b54b44571f1a7fde8186e6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/83e0f220d1e992fa074157fcf14945bf170ffbc5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/89709105a6091948ffb6ec2427954cbfe45358ce"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d1e546ab91c670e536a274a75481034ab7534876"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:5102", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.16.1.rt7.357.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:5101", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.16.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2025:9584", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "kernel-0:5.14.0-427.74.1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-06-25T00:00:00Z"}], "bugzilla": {"description": "kernel: drm/vmwgfx: fix a memleak in vmw_gmrid_man_get_node", "id": "2281360", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281360"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/vmwgfx: fix a memleak in vmw_gmrid_man_get_node\nWhen ida_alloc_max fails, resources allocated before should be freed,\nincluding *res allocated by kmalloc and ttm_resource_init."], "name": "CVE-2023-52662", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52662\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52662\nhttps://lore.kernel.org/linux-cve-announce/2024051740-CVE-2023-52662-1536@gregkh/T"], "threat_severity": "Low"}

{}