172 lines
8.8 KiB
JSON
172 lines
8.8 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-2024-42275",
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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": "2024-07-30T07:40:12.261Z",
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"datePublished": "2024-08-17T08:54:28.902Z",
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"dateUpdated": "2026-08-05T11:36:15.323Z"
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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": "2026-08-05T11:36:15.323Z"
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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/client: Fix error code in drm_client_buffer_vmap_local()\n\nThis function accidentally returns zero/success on the failure path.\nIt leads to locking issues and an uninitialized *map_copy in the\ncaller."
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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 vulnerable path is reached only through local interfaces — writes/mmap to the fbdev device node or console output driving the damage worker, plus DRM GEM allocations to induce the vmap/pin failure. There is no remote or adjacent-network input.\nAC:L - Both preconditions are under the attacker's control: the failing `drm_gem_vmap()` is reliably produced by exhausting system memory or VRAM through the render node, and the damage blit is triggered on demand by writing to `/dev/fb0`. No condition depends on state the attacker cannot influence.\nPR:L - An ordinary local account with the usual graphics access (fbdev/DRM render node, e.g. the video/render/graphics groups on desktops, Android and embedded systems) suffices; no CAP_SYS_ADMIN or root is required anywhere on the path.\nUI:N - The attacker drives the entire sequence from its own process — allocate to force the vmap failure, then dirty the framebuffer; the damage worker also fires automatically on console updates. No victim action is needed.\nS:U - The corruption stays within the kernel's own security authority; there is no VM, IOMMU, or sandbox boundary crossed by the failed mapping or the reservation-lock imbalance.\nC:H - The uninitialized `iosys_map` write and the released-but-still-assumed-held reservation lock give memory corruption plus a race window where a BO can be moved/evicted mid-blit, which is leverageable for disclosure of arbitrary kernel memory.\nI:H - A loop of `memcpy` writes of fully userspace-controlled shadow-framebuffer bytes lands at an uninitialized kernel pointer (or MMIO address), which with stack grooming is an arbitrary-write primitive suitable for control-flow hijack.\nA:H - The write through the garbage pointer causes an immediate oops/panic (a guaranteed NULL-deref on `INIT_STACK_ALL_ZERO` builds), and the extra `dma_resv_unlock()` corrupts ww_mutex state, leading to warnings, stolen locks and deadlocks."
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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/drm_client.c"
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],
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"versions": [
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{
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"version": "b4b0193e83cb987143583e2b4011b35331f429bd",
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"lessThan": "c0f412961653237f52e2f16ee8747fb330bcf074",
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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": "b4b0193e83cb987143583e2b4011b35331f429bd",
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"lessThan": "b5fbf924f125ba3638cfdc21c0515eb7e76264ca",
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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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"drivers/gpu/drm/drm_client.c"
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],
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"versions": [
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{
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"version": "6.10",
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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": "6.10",
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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": "6.10.4",
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"lessThanOrEqual": "6.10.*",
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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": "6.11",
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.10",
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"versionEndExcluding": "6.10.4"
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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": "6.10",
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"versionEndExcluding": "6.11"
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}
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]
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}
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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/c0f412961653237f52e2f16ee8747fb330bcf074"
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},
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{
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"url": "https://git.kernel.org/stable/c/b5fbf924f125ba3638cfdc21c0515eb7e76264ca"
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}
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],
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"title": "drm/client: Fix error code in drm_client_buffer_vmap_local()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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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-2024-42275",
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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": "2024-09-10T16:11:58.568874Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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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": "2024-09-12T17:33:31.871Z"
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}
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}
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]
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}
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} |