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CVE-2023-52834

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: atl1c: Work around the DMA RX overflow issue This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX…

Published May 21, 2024EPSS 0.65%

Overview

CVE-2023-52834 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

atl1c: Work around the DMA RX overflow issue

This is based on alx driver commit 881d0327db37 ("net: alx: Work around

the DMA RX overflow issue").

The alx and atl1c drivers had RX overflow error which was why a custom

allocator was created to avoid certain addresses. The simpler workaround

then created for alx driver, but not for atl1c due to lack of tester.

Instead of using a custom allocator, check the allocated skb address and

use skb_reserve() to move away from problematic 0x...fc0 address.

Tested on AR8131 on Acer 4540.

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/32f08b7b430ee01ec47d730f961a3306c1c7b6fbRefgit.kernel.org/stable/c/54a6152da4993ec8e4b53dc3cf577f5a2c829afaRefgit.kernel.org/stable/c/57e44ff9c2c9747b2b1a53556810b0e5192655d6Refgit.kernel.org/stable/c/86565682e9053e5deb128193ea9e88531bbae9cfRefgit.kernel.org/stable/c/c29a89b23f67ee592f4dee61f9d7efbf86d60315Refgit.kernel.org/stable/c/32f08b7b430ee01ec47d730f961a3306c1c7b6fbRefgit.kernel.org/stable/c/54a6152da4993ec8e4b53dc3cf577f5a2c829afaRefgit.kernel.org/stable/c/57e44ff9c2c9747b2b1a53556810b0e5192655d6Refgit.kernel.org/stable/c/86565682e9053e5deb128193ea9e88531bbae9cfRefgit.kernel.org/stable/c/c29a89b23f67ee592f4dee61f9d7efbf86d60315

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52834?

CVE-2023-52834 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-52834?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-52834?

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-2023-52834?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52834 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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