SECUFOCUSNOW
Home›CVE index›CVE-2024-26952
Review reviewHigh

CVE-2024-26952

Linux Linux, linux_kernel, linux kernel

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial out-of-bounds when buffer offset is invalid I found potencial out-of-bounds when buffer offset fields of a few requests is invalid. This patch set the minimum value of buffer offset field to ->Buffer offset to validate buffer length.

CVSS
7.8
EPSS
0.72%
50.5% percentile
CISA KEV
Not listed
Published
2024.05.01
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.72%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial out-of-bounds when buffer offset is invalid I found potencial out-of-bounds when buffer offset fields of a few requests is invalid. This patch set the minimum value of buffer offset field to ->Buffer offset to validate buffer length.

Affected product and versions

Product
Linux Linux, linux_kernel, linux kernel
Affected versions
>= 0626e6641f6b467447c81dd7678a69c66f7746cf < 480469f145e5abf83361e608734e421b7d99693d, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < ad6480c9a5d884e2704adc51d69895d93339176c, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 39bdc4197acf2ed13269167ccf093ee28cfa2a4e, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 2dcda336b6e80b72d58d30d40f2fad9724e5fe63, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 0c5541b4c980626fa3cab16ba1a451757778bbb5, >= 0626e6641f6b467447c81dd7678a69c66f7746cf < c6cd2e8d2d9aa7ee35b1fa6a668e32a22a9753da, >= 5.15, >= 1da177e4c3f4 < 2dcda336b6e8, >= 5.15 < 5.15.181, >= 5.16 < 6.1.119, >= 6.2 < 6.6.32, >= 6.7 < 6.7.12, >= 6.8 < 6.8.3
Fixed versions
5.15.181, 6.1.119, 6.6.32, 6.7.12, 6.8.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux_kernel, 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:H/A:H
CWE
CWE-120, CWE-125