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CVE Record

CVE-2023-52916: media: aspeed: Fix memory overwrite if timing is 1600x900

In the Linux kernel, the following vulnerability has been resolved: media: aspeed: Fix memory overwrite if timing is 1600x900 When capturing 1600x900, system could crash when system memory usage is tight. The way to reproduce this issue: 1. Use 1600x900 to display on host 2. Mount ISO through 'Virtual media' on OpenBMC's web 3. Run script as below on host to do sha continuously #!/bin/bash while [ [1] ]; do find /media -type f -printf '"%h/%f"\n' | xargs sha256sum done 4. Open KVM on OpenBMC's web The size of macro block captured is 8x8. Therefore, we should make sure the height of src-buf is 8 aligned to fix this issue.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-52916 is a Linux kernel flaw in the ASPEED media capture path used in BMC-style KVM workflows. A specific 1600x900 capture condition can overwrite memory and crash the system under pressure. It matters most for servers or appliances using ASPEED/OpenBMC remote console features.

Executive priority

Treat as a high-priority infrastructure maintenance issue for server fleets using ASPEED/OpenBMC remote management. It is not reported as actively exploited, but impact includes possible crash and memory corruption in a privileged kernel path.

Technical view

The kernel ASPEED media driver did not ensure the source buffer height was aligned to the 8x8 macroblock capture size. For 1600x900 timing, this could cause memory overwrite when memory is tight. CVSS is 7.8 with local, low-privilege attack requirements and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is most likely on Linux systems with ASPEED video capture/BMC KVM functionality, especially OpenBMC remote console use. General Linux systems without this hardware or driver path are less likely exposed. Exact affected package versions depend on distribution backports and kernel builds.

Exploitation context

The provided sources describe a reproducible crash scenario involving 1600x900 display capture, virtual media, host file hashing load, and opening KVM through OpenBMC. CISA KEV is false in the provided data, and no cited source claims active exploitation.

Researcher notes

The root issue is buffer sizing/alignment for 8x8 macroblock capture at 1600x900 timing. Public references are kernel stable commits and a Debian LTS announcement. The provided source data does not include detailed distro version mapping beyond the kernel advisory context.

Mitigation direction

  • Check Linux distribution and BMC vendor advisories for CVE-2023-52916 fixes.
  • Apply kernel or firmware updates that include the referenced stable ASPEED media fix.
  • Prioritize systems exposing OpenBMC/KVM or remote console features.
  • If updates are unavailable, reduce exposure to BMC management interfaces.

Validation and detection

  • Inventory Linux hosts and BMC images using ASPEED media capture support.
  • Compare running kernel packages against vendor advisories and stable kernel fixes.
  • Review BMC/OpenBMC logs for KVM crashes around 1600x900 sessions.
  • Confirm management interfaces are restricted to trusted administrative networks.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2023-52916 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
2ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2023-52916Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxd2b4387f3bdf016e266d23cf657465f557721488, d2b4387f3bdf016e266d23cf657465f557721488unaffected
LinuxLinux5.0, 0, 6.1.120, 6.6affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.