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CVE-2024-36270

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: netfilter: tproxy: bail out if IP has been disabled on the device syzbot reports: general protection fault, probably for non-ca…

Published Jun 21, 2024CWE-476EPSS 0.26%

Overview

CVE-2024-36270 is a medium-severity vulnerability. It was published on June 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:

netfilter: tproxy: bail out if IP has been disabled on the device

syzbot reports:

general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI

KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]

[..]

RIP: 0010:nf_tproxy_laddr4+0xb7/0x340 net/ipv4/netfilter/nf_tproxy_ipv4.c:62

Call Trace:

nft_tproxy_eval_v4 net/netfilter/nft_tproxy.c:56 [inline]

nft_tproxy_eval+0xa9a/0x1a00 net/netfilter/nft_tproxy.c:168

__in_dev_get_rcu() can return NULL, so check for this.

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/07eeedafc59c45fe5de43958128542be3784764cRefgit.kernel.org/stable/c/10f0af5234dafd03d2b75233428ec3f11cf7e43dRefgit.kernel.org/stable/c/21a673bddc8fd4873c370caf9ae70ffc6d47e8d3Refgit.kernel.org/stable/c/570b4c52096e62fda562448f5760fd0ff06110f0Refgit.kernel.org/stable/c/6fe5af4ff06db3d4d80e07a19356640428159f03Refgit.kernel.org/stable/c/819bfeca16eb9ad647ddcae25e7e12c30612147cRefgit.kernel.org/stable/c/caf3a8afb5ea00db6d5398adf148d5534615fd80Refgit.kernel.org/stable/c/07eeedafc59c45fe5de43958128542be3784764cRefgit.kernel.org/stable/c/10f0af5234dafd03d2b75233428ec3f11cf7e43dRefgit.kernel.org/stable/c/21a673bddc8fd4873c370caf9ae70ffc6d47e8d3

How CyberStrike helps

Frequently asked questions

What is CVE-2024-36270?

CVE-2024-36270 is a medium-severity vulnerability. It was published on June 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-36270?

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-2024-36270?

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-2024-36270?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-36270 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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