Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-52623

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a suspicious RCU usage warning I received the following warning while running cthon against an ontap server running…

Published Mar 26, 2024CWE-22EPSS 0.28%

Overview

CVE-2023-52623 is a high-severity vulnerability. It was published on March 26, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

SUNRPC: Fix a suspicious RCU usage warning

I received the following warning while running cthon against an ontap

server running pNFS:

[ 57.202521] =============================

[ 57.202522] WARNING: suspicious RCU usage

[ 57.202523] 6.7.0-rc3-g2cc14f52aeb7 #41492 Not tainted

[ 57.202525] -----------------------------

[ 57.202525] net/sunrpc/xprtmultipath.c:349 RCU-list traversed in non-reader section!!

[ 57.202527]

other info that might help us debug this:

[ 57.202528]

rcu_scheduler_active = 2, debug_locks = 1

[ 57.202529] no locks held by test5/3567.

[ 57.202530]

stack backtrace:

[ 57.202532] CPU: 0 PID: 3567 Comm: test5 Not tainted 6.7.0-rc3-g2cc14f52aeb7 #41492 5b09971b4965c0aceba19f3eea324a4a806e227e

[ 57.202534] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 2/2/2022

[ 57.202536] Call Trace:

[ 57.202537] <TASK>

[ 57.202

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/31b62908693c90d4d07db597e685d9f25a120073Refgit.kernel.org/stable/c/69c7eeb4f622c2a28da965f970f982db171f3dc6Refgit.kernel.org/stable/c/7a96d85bf196c170dcf1b47a82e9bb97cca69aa6Refgit.kernel.org/stable/c/8f860c8407470baff2beb9982ad6b172c94f1d0aRefgit.kernel.org/stable/c/c430e6bb43955c6bf573665fcebf31694925b9f7Refgit.kernel.org/stable/c/e8ca3e73301e23e8c0ac0ce2e6bac4545cd776e0Refgit.kernel.org/stable/c/f8cf4dabbdcb8bef85335b0ed7ad5b25fd82ff56Refgit.kernel.org/stable/c/fece80a2a6718ed58487ce397285bb1b83a3e54eRefgit.kernel.org/stable/c/31b62908693c90d4d07db597e685d9f25a120073Refgit.kernel.org/stable/c/69c7eeb4f622c2a28da965f970f982db171f3dc6

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52623?

CVE-2023-52623 is a high-severity vulnerability. It was published on March 26, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52623?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52623?

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-2023-52623?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52623 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.

Related HIGH CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999