CVE-2023-52916

media: aspeed: Fix memory overwrite if timing is 1600x900

State: Published
Severity: 7.8 High
Published: Sep 6, 2024
Updated: Aug 5, 2026
Reserved: Aug 21, 2024

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d2b4387f3bdf016e266d23cf657465f557721488 to before 4c823e4027dd1d6e88c31028dec13dd19bc7b02dAffected d2b4387f3bdf016e266d23cf657465f557721488 to before c281355068bc258fd619c5aefd978595bede7bfeAffected
LinuxLinux	5.0Affected before 5.0Not affected 6.1.120 through 6.1.*Not affected 6.6 and laterNot affected

References

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