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Review reviewHigh

CVE-2024-38577

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow There is a possibility of buffer overflow in show_rcu_tasks_trace_gp_kthread() if counters, passed to sprintf() are huge. Counter numbers, needed for this are unrealistically high, but buffer overflow is still possible. Use snprintf() with buffer size instead of sprintf(). Found by Linux Verification Center (linuxtesting.org) with SVACE.

CVSS
7.8
EPSS
0.26%
17.2% percentile
CISA KEV
Not listed
Published
2024.06.19
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.26%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow There is a possibility of buffer overflow in show_rcu_tasks_trace_gp_kthread() if counters, passed to sprintf() are huge. Counter numbers, needed for this are unrealistically high, but buffer overflow is still possible. Use snprintf() with buffer size instead of sprintf(). Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= edf3775f0ad66879796f594983163f672c4bf1a2 < 17c43211d45f13d1badea3942b76bf16bcc49281, >= edf3775f0ad66879796f594983163f672c4bf1a2 < af7b560c88fb420099e29890aa682b8a3efc8784, >= edf3775f0ad66879796f594983163f672c4bf1a2 < 08186d0c5fb64a1cc4b43e009314ee6b173ed222, >= edf3775f0ad66879796f594983163f672c4bf1a2 < 32d988f48ed287e676a29a15ac30701c35849aec, >= edf3775f0ad66879796f594983163f672c4bf1a2 < 6593d857ce5b5b802fb73d8091ac9c84b92c1697, >= edf3775f0ad66879796f594983163f672c4bf1a2 < 1a240e138071b25944ded0f5b3e357aa99fabcb7, >= edf3775f0ad66879796f594983163f672c4bf1a2 < cc5645fddb0ce28492b15520306d092730dffa48, >= 5.8, >= 5.8 < 5.10.226, >= 5.11 < 5.15.167, >= 5.16 < 6.1.93, >= 6.2 < 6.6.33, >= 6.7 < 6.8.12, >= 6.9 < 6.9.3
Fixed versions
5.10.226, 5.15.167, 6.1.93, 6.6.33, 6.8.12, 6.9.3

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:H/A:H
CWE
CWE-120
CVE-2024-38577 — Linux Linux, linux kernel | SECUFOCUS NOW