Review reviewHigh

CVE-2022-48739

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: ASoC: hdmi-codec: Fix OOB memory accesses Correct size of iec_status array by changing it to the size of status array of the struct snd_aes_iec958. This fixes out-of-bounds slab read accesses made by memcpy() of the hdmi-codec driver. This problem is reported by KASAN.

CVSS
7.1
EPSS
0.23%
14.3% percentile
CISA KEV
Not listed
Published
2024.06.20
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.23%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ASoC: hdmi-codec: Fix OOB memory accesses Correct size of iec_status array by changing it to the size of status array of the struct snd_aes_iec958. This fixes out-of-bounds slab read accesses made by memcpy() of the hdmi-codec driver. This problem is reported by KASAN.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3 < 10007bd96b6c4c3cfaea9e76c311b06a07a5e260, >= 7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3 < 1552e66be325a21d7eff49f46013fb402165a0ac, >= 7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3 < 06feec6005c9d9500cd286ec440aabf8b2ddd94d, >= 5.14, < 5.15.22, >= 5.16 < 5.16.8, 5.17
Fixed versions
5.15.22, 5.16.8

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125
CVE-2022-48739 — Linux Linux, linux kernel | SECUFOCUS NOW