CVE-2024-50258

5.5 · MEDIUM

Published Nov 9, 2024 linux CWE-191 EPSS 0.22% (12th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-50258 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 9, 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:

net: fix crash when config small gso_max_size/gso_ipv4_max_size

Config a small gso_max_size/gso_ipv4_max_size will lead to an underflow

in sk_dst_gso_max_size(), which may trigger a BUG_ON crash,

because sk->sk_gso_max_size would be much bigger than device limits.

Call Trace:

tcp_write_xmit

tso_segs = tcp_init_tso_segs(skb, mss_now);

tcp_set_skb_tso_segs

tcp_skb_pcount_set

// skb->len = 524288, mss_now = 8

// u16 tso_segs = 524288/8 = 65535 -> 0

tso_segs = DIV_ROUND_UP(skb->len, mss_now)

BUG_ON(!tso_segs)

Add check for the minimum value of gso_max_size and gso_ipv4_max_size.

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	4.16	Affected

References

Ref git.kernel.org/stable/c/90c8482a5d9791259ba77bfdc1849fc5128b4be7 Ref git.kernel.org/stable/c/9ab5cf19fb0e4680f95e506d6c544259bf1111c4 Ref git.kernel.org/stable/c/ac5977001eee7660c643f8e07a2de9001990b7b8 Ref git.kernel.org/stable/c/e72fd1389a5364bc6aa6312ecf30bdb5891b9486 Ref git.kernel.org/stable/c/e9365368b483328639c03fc730448dccd5a25b6b Ref lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Frequently Asked Questions

What is CVE-2024-50258?

CVE-2024-50258 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 9, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50258?

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-2024-50258?

How can CyberStrike help with CVE-2024-50258?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-50258 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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