CVE-2024-57923

5.5 · MEDIUM

Published Jan 19, 2025 linux CWE-617 EPSS 0.21% (12th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-57923 is a medium-severity vulnerability affecting linux linux_kernel. It was published on January 19, 2025 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:

btrfs: zlib: fix avail_in bytes for s390 zlib HW compression path

Since the input data length passed to zlib_compress_folios() can be

arbitrary, always setting strm.avail_in to a multiple of PAGE_SIZE may

cause read-in bytes to exceed the input range. Currently this triggers

an assert in btrfs_compress_folios() on the debug kernel (see below).

Fix strm.avail_in calculation for S390 hardware acceleration path.

assertion failed: *total_in <= orig_len, in fs/btrfs/compression.c:1041

------------[ cut here ]------------

kernel BUG at fs/btrfs/compression.c:1041!

monitor event: 0040 ilc:2 [#1] PREEMPT SMP

CPU: 16 UID: 0 PID: 325 Comm: kworker/u273:3 Not tainted 6.13.0-20241204.rc1.git6.fae3b21430ca.300.fc41.s390x+debug #1

Hardware name: IBM 3931 A01 703 (z/VM 7.4.0)

Workqueue: btrfs-delalloc btrfs_work_helper

Krnl PSW : 0704d00180000000 0000021761df6538 (btrfs_compress_folios+0x198/0x1a0)

R:0

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 6.12, < 6.12.10	Affected

References

Ref git.kernel.org/stable/c/0ee4736c003daded513de0ff112d4a1e9c85bbab Ref git.kernel.org/stable/c/25adbb08aeadcff883ab801df99fd20fefbb6ca4

Frequently Asked Questions

What is CVE-2024-57923?

CVE-2024-57923 is a medium-severity vulnerability affecting linux linux_kernel. It was published on January 19, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-57923?

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-2024-57923?

How can CyberStrike help with CVE-2024-57923?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-57923 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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