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CVE-2024-36901

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent NULL dereference in ip6_output() According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_o…

Published May 30, 2024CWE-476EPSS 0.26%

Overview

CVE-2024-36901 is a medium-severity vulnerability. It was published on May 30, 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:

ipv6: prevent NULL dereference in ip6_output()

According to syzbot, there is a chance that ip6_dst_idev()

returns NULL in ip6_output(). Most places in IPv6 stack

deal with a NULL idev just fine, but not here.

syzbot reported:

general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI

KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7]

CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024

RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237

Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff

RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202

RAX: 00000000000000bc RBX: 0000

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/2272e2db38f2e85929278146d7c770f22f528579Refgit.kernel.org/stable/c/4db783d68b9b39a411a96096c10828ff5dfada7aRefgit.kernel.org/stable/c/55f7eb4001ef2a3b48cf039cf263f9ed0ec5a488Refgit.kernel.org/stable/c/9df3b2474a627994433a87cbf325a562555b17deRefgit.kernel.org/stable/c/e31b25cc2066d3f2b6c38579253882008d4469b0Refgit.kernel.org/stable/c/ea0cb87402f774b0e1214ffba0f57028b27cf155Refgit.kernel.org/stable/c/2272e2db38f2e85929278146d7c770f22f528579Refgit.kernel.org/stable/c/4db783d68b9b39a411a96096c10828ff5dfada7aRefgit.kernel.org/stable/c/55f7eb4001ef2a3b48cf039cf263f9ed0ec5a488Refgit.kernel.org/stable/c/9df3b2474a627994433a87cbf325a562555b17de

How CyberStrike helps

Frequently asked questions

What is CVE-2024-36901?

CVE-2024-36901 is a medium-severity vulnerability. It was published on May 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-36901?

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-2024-36901?

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-2024-36901?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-36901 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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