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Review reviewHigh

CVE-2023-54325

Linux

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix out-of-bounds read When preparing an AER-CTR request, the driver copies the key provided by the user into a data structure that is accessible by the firmware. If the target device is QAT GEN4, the key size is rounded up by 16 since a rounded up size is expected by the device. If the key size is rounded up before the copy, the size used for copying the key might be bigger than the size of the region containing the key, causing an out-of-bounds read. Fix by doing the copy first and then update the keylen. Th...

CVSS
7.1
EPSS
0.12%
2.25% percentile
CISA KEV
Not listed
Published
2025.12.30
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.12%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix out-of-bounds read When preparing an AER-CTR request, the driver copies the key provided by the user into a data structure that is accessible by the firmware. If the target device is QAT GEN4, the key size is rounded up by 16 since a rounded up size is expected by the device. If the key size is rounded up before the copy, the size used for copying the key might be bigger than the size of the region containing the key, causing an out-of-bounds read. Fix by doing the copy first and then update the keylen. Th...

Affected product and versions

Product
Linux
Affected versions
>= 67916c9516893528ecce060ada1f58af0ce33d93 < 7697139d5dfd491f4c495a914a1dd68f6e827a0f, >= 67916c9516893528ecce060ada1f58af0ce33d93 < dc3809f390357c8992f0a23083da934a20fef9af, >= 67916c9516893528ecce060ada1f58af0ce33d93 < 2b1501f058245573a3aa6bf234d205dde1196184, >= 67916c9516893528ecce060ada1f58af0ce33d93 < f6044cc3030e139f60c281386f28bda6e3049d66, >= 5.11
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux 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
Not available
CVE-2023-54325 — Linux | SECUFOCUS NOW