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CVE-2024-38661

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: s390/ap: Fix crash in AP internal function modify_bitmap() A system crash like this Failing address: 200000cb7df6f000 TEID:…

Published Jun 25, 2024CWE-190EPSS 0.26%

Overview

CVE-2024-38661 is a medium-severity vulnerability. It was published on June 25, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

s390/ap: Fix crash in AP internal function modify_bitmap()

A system crash like this

Failing address: 200000cb7df6f000 TEID: 200000cb7df6f403

Fault in home space mode while using kernel ASCE.

AS:00000002d71bc007 R3:00000003fe5b8007 S:000000011a446000 P:000000015660c13d

Oops: 0038 ilc:3 [#1] PREEMPT SMP

Modules linked in: mlx5_ib ...

CPU: 8 PID: 7556 Comm: bash Not tainted 6.9.0-rc7 #8

Hardware name: IBM 3931 A01 704 (LPAR)

Krnl PSW : 0704e00180000000 0000014b75e7b606 (ap_parse_bitmap_str+0x10e/0x1f8)

R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3

Krnl GPRS: 0000000000000001 ffffffffffffffc0 0000000000000001 00000048f96b75d3

000000cb00000100 ffffffffffffffff ffffffffffffffff 000000cb7df6fce0

000000cb7df6fce0 00000000ffffffff 000000000000002b 00000048ffffffff

000003ff9b2dbc80 200000cb7df6fcd8 0000014bffffffc0 000000cb7df6fbc8

Krnl Code: 0000014b75e7b5fc: a7840047 brc

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2062e3f1f2374102f8014d7ca286b9aa527bd558Refgit.kernel.org/stable/c/4c0bfb4e867c1ec6616a5049bd3618021e127056Refgit.kernel.org/stable/c/67011123453b91ec03671d40712fa213e94a01b9Refgit.kernel.org/stable/c/7360cef95aa1ea2b5efb7b5e2ed32e941664e1f0Refgit.kernel.org/stable/c/7c72af16abf2ec7520407098360bbba312289e05Refgit.kernel.org/stable/c/7dabe54a016defe11bb2a278cd9f1ff6db3feba6Refgit.kernel.org/stable/c/8c5f5911c1b13170d3404eb992c6a0deaa8d81adRefgit.kernel.org/stable/c/d4f9d5a99a3fd1b1c691b7a1a6f8f3f25f4116c9Refgit.kernel.org/stable/c/2062e3f1f2374102f8014d7ca286b9aa527bd558Refgit.kernel.org/stable/c/4c0bfb4e867c1ec6616a5049bd3618021e127056

How CyberStrike helps

Frequently asked questions

What is CVE-2024-38661?

CVE-2024-38661 is a medium-severity vulnerability. It was published on June 25, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-38661?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-38661?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-38661?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-38661 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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