185 lines
9.3 KiB
JSON
185 lines
9.3 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-2023-52916",
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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": "2024-09-06T09:07:50.462Z",
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"dateUpdated": "2026-08-05T09:11:59.259Z"
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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": "2026-08-05T09:11:59.259Z"
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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\nmedia: aspeed: Fix memory overwrite if timing is 1600x900\n\nWhen capturing 1600x900, system could crash when system memory usage is\ntight.\n\nThe way to reproduce this issue:\n1. Use 1600x900 to display on host\n2. Mount ISO through 'Virtual media' on OpenBMC's web\n3. Run script as below on host to do sha continuously\n #!/bin/bash\n while [ [1] ];\n do\n\tfind /media -type f -printf '\"%h/%f\"\\n' | xargs sha256sum\n done\n4. Open KVM on OpenBMC's web\n\nThe size of macro block captured is 8x8. Therefore, we should make sure\nthe height of src-buf is 8 aligned to fix this issue."
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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 through the local V4L2 device node (/dev/video*) via open, VIDIOC_S_DV_TIMINGS, and streaming ioctls on the BMC; the kernel does not process network packets in this driver.\nAC:L - Any non-8-aligned capture height (e.g. 1600x900) reliably allocates an undersized DMA buffer and the hardware always writes past it; an attacker who can open the device can set such timings and start streaming without depending on conditions outside their control.\nPR:L - The driver performs no capability checks; access requires only open permission on the V4L2 device (typically video-group membership), not real root or init-namespace admin privileges.\nUI:N - A local attacker with device access can open the capture device, set undersized timings, and start streaming themselves without any separate victim action.\nS:U - Impact is memory corruption within the same BMC kernel security authority that hosts the vulnerable driver; this is standard local privilege escalation, not a cross-boundary escape.\nC:H - The out-of-bounds DMA write is substantial kernel memory corruption (~25KB at 1600x900, more at other non-aligned modes) that can be leveraged for information disclosure primitives.\nI:H - Hardware DMA performs a large out-of-bounds write of capturable framebuffer data into adjacent coherent DMA/kernel memory, which is exploitable for integrity compromise and control-flow hijacking.\nA:H - The memory overwrite is documented to crash the system (kernel oops/panic) under realistic OpenBMC KVM capture workloads."
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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/media/platform/aspeed/aspeed-video.c"
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],
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"versions": [
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{
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"version": "d2b4387f3bdf016e266d23cf657465f557721488",
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"lessThan": "4c823e4027dd1d6e88c31028dec13dd19bc7b02d",
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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": "d2b4387f3bdf016e266d23cf657465f557721488",
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"lessThan": "c281355068bc258fd619c5aefd978595bede7bfe",
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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/media/platform/aspeed/aspeed-video.c"
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],
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"versions": [
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{
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"version": "5.0",
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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": "5.0",
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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": "6.1.120",
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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": "6.6",
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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": "5.0",
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"versionEndExcluding": "6.1.120"
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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": "5.0",
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"versionEndExcluding": "6.6"
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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/4c823e4027dd1d6e88c31028dec13dd19bc7b02d"
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},
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{
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"url": "https://git.kernel.org/stable/c/c281355068bc258fd619c5aefd978595bede7bfe"
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}
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],
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"title": "media: aspeed: Fix memory overwrite if timing is 1600x900",
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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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"timestamp": "2024-09-09T20:43:04.212290Z",
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"id": "CVE-2023-52916",
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2024-09-29T13:22:28.595Z"
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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://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
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}
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],
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T20:36:16.639Z"
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}
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]
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}
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} |