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CVE-2024-42099

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Fix invalid dereferencing of indirect CCW data pointer Fix invalid dereferencing of indirect CCW data pointer in das…

Published Jul 30, 2024CWE-476EPSS 0.22%

Overview

CVE-2024-42099 is a high-severity vulnerability. It was published on July 30, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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/dasd: Fix invalid dereferencing of indirect CCW data pointer

Fix invalid dereferencing of indirect CCW data pointer in

dasd_eckd_dump_sense() that leads to a kernel panic in error cases.

When using indirect addressing for DASD CCWs (IDAW) the CCW CDA pointer

does not contain the data address itself but a pointer to the IDAL.

This needs to be translated from physical to virtual as well before

using it.

This dereferencing is also used for dasd_page_cache and also fixed

although it is very unlikely that this code path ever gets used.

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/b3a58f3b90f564f42a5c35778d8c5107b2c2150bRefgit.kernel.org/stable/c/c116475f7d6410b1e6d399207ac75de6cf9c3652Refgit.kernel.org/stable/c/b3a58f3b90f564f42a5c35778d8c5107b2c2150bRefgit.kernel.org/stable/c/c116475f7d6410b1e6d399207ac75de6cf9c3652

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42099?

CVE-2024-42099 is a high-severity vulnerability. It was published on July 30, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-42099?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-42099?

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-2024-42099?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42099 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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