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osvGoogleOSV:CVE-2023-52916
HistorySep 06, 2024 - 9:15 a.m.

CVE-2023-52916

2024-09-0609:15:03
Google
osv.dev
linux kernel
media vulnerability
memory overwrite
1600x900
system crash
openbmc
sha continuous script
kvm
macro block
src-buf fix

AI Score

6.8

Confidence

High

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.

AI Score

6.8

Confidence

High

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