CVE-2024-49994

5.5 · MEDIUM

Published Oct 21, 2024 linux CWE-190 EPSS 0.24% (15th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-49994 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 21, 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:

block: fix integer overflow in BLKSECDISCARD

I independently rediscovered

commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155

block: fix overflow in blk_ioctl_discard()

but for secure erase.

Same problem:

uint64_t r[2] = {512, 18446744073709551104ULL};

ioctl(fd, BLKSECDISCARD, r);

will enter near infinite loop inside blkdev_issue_secure_erase():

a.out: attempt to access beyond end of device

loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048

bio_check_eod: 3286214 callbacks suppressed

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	>= 0, < 6.10.14	Affected

References

Ref git.kernel.org/stable/c/0842ddd83939eb4db940b9af7d39e79722bc41aa Ref git.kernel.org/stable/c/697ba0b6ec4ae04afb67d3911799b5e2043b4455 Ref git.kernel.org/stable/c/6c9915fa9410cbb9bd75ee283c03120046c56d3d Ref git.kernel.org/stable/c/8476f8428e8b48fd7a0e4258fa2a96a8f4468239 Ref git.kernel.org/stable/c/a99bacb35c1416355eef957560e8fcac3a665549 Ref lists.debian.org/debian-lts-announce/2025/03/msg00001.html Ref cert-portal.siemens.com/productcert/html/ssa-019113.html

Frequently Asked Questions

What is CVE-2024-49994?

CVE-2024-49994 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-49994?

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-2024-49994?

How can CyberStrike help with CVE-2024-49994?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-49994 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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