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LinuxCVELIST:CVE-2023-52916

HistorySep 06, 2024 - 9:07 a.m.

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

2024-09-0609:07:50

Linux

www.cve.org

linux kernel

media

aspeed

vulnerability

memory overwrite

1600x900

system crash

tight memory

reproduce issue

iso mount

virtual media

openbmc

continuous sha

script

kvm

EPSS

Percentile

9.5%

JSON

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:

Use 1600x900 to display on host
Mount ISO through ‘Virtual media’ on OpenBMC’s web
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
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.

CNA 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": "1da177e4c3f4",
        "lessThan": "c281355068bc",
        "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": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

References

git.kernel.org/stable/c/c281355068bc258fd619c5aefd978595bede7bfe

EPSS

Percentile

9.5%

JSON

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