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CVE-2024-50153

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix null-ptr-deref in target_alloc_device() There is a null-ptr-deref issue reported by KASAN: BUG: KASAN:…

Published Nov 7, 2024CWE-476EPSS 0.26%

Overview

CVE-2024-50153 is a medium-severity vulnerability. It was published on November 7, 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:

scsi: target: core: Fix null-ptr-deref in target_alloc_device()

There is a null-ptr-deref issue reported by KASAN:

BUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod]

...

kasan_report+0xb9/0xf0

target_alloc_device+0xbc4/0xbe0 [target_core_mod]

core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod]

target_core_init_configfs+0x205/0x420 [target_core_mod]

do_one_initcall+0xdd/0x4e0

...

entry_SYSCALL_64_after_hwframe+0x76/0x7e

In target_alloc_device(), if allocing memory for dev queues fails, then

dev will be freed by dev->transport->free_device(), but dev->transport

is not initialized at that time, which will lead to a null pointer

reference problem.

Fixing this bug by freeing dev with hba->backend->ops->free_device().

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/14a6a2adb440e4ae97bee73b2360946bd033daddRefgit.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7Refgit.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314Refgit.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1Refgit.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6Refgit.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03Reflists.debian.org/debian-lts-announce/2025/01/msg00001.htmlReflists.debian.org/debian-lts-announce/2025/03/msg00002.htmlRefcert-portal.siemens.com/productcert/html/ssa-265688.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-50153?

CVE-2024-50153 is a medium-severity vulnerability. It was published on November 7, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50153?

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-2024-50153?

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-2024-50153?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-50153 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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