{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-52916",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-08-21T06:07:11.017Z",
        "datePublished": "2024-09-06T09:07:50.462Z",
        "dateUpdated": "2026-08-05T09:11:59.259Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T09:11:59.259Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "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."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "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."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/platform/aspeed/aspeed-video.c"
                    ],
                    "versions": [
                        {
                            "version": "d2b4387f3bdf016e266d23cf657465f557721488",
                            "lessThan": "4c823e4027dd1d6e88c31028dec13dd19bc7b02d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d2b4387f3bdf016e266d23cf657465f557721488",
                            "lessThan": "c281355068bc258fd619c5aefd978595bede7bfe",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/platform/aspeed/aspeed-video.c"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.120",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.1.120"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.6"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/4c823e4027dd1d6e88c31028dec13dd19bc7b02d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c281355068bc258fd619c5aefd978595bede7bfe"
                }
            ],
            "title": "media: aspeed: Fix memory overwrite if timing is 1600x900",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-09-09T20:43:04.212290Z",
                                "id": "CVE-2023-52916",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-29T13:22:28.595Z"
                }
            },
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2025-11-03T20:36:16.639Z"
                }
            }
        ]
    }
}