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CVE-2023-52499

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: powerpc/47x: Fix 47x syscall return crash Eddie reported that newer kernels were crashing during boot on his 476 FSP2 system:…

Published Mar 2, 2024EPSS 0.22%

Overview

CVE-2023-52499 is a medium-severity vulnerability. It was published on March 2, 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:

powerpc/47x: Fix 47x syscall return crash

Eddie reported that newer kernels were crashing during boot on his 476

FSP2 system:

kernel tried to execute user page (b7ee2000) - exploit attempt? (uid: 0)

BUG: Unable to handle kernel instruction fetch

Faulting instruction address: 0xb7ee2000

Oops: Kernel access of bad area, sig: 11 [#1]

BE PAGE_SIZE=4K FSP-2

Modules linked in:

CPU: 0 PID: 61 Comm: mount Not tainted 6.1.55-d23900f.ppcnf-fsp2 #1

Hardware name: ibm,fsp2 476fpe 0x7ff520c0 FSP-2

NIP:  b7ee2000 LR: 8c008000 CTR: 00000000

REGS: bffebd83 TRAP: 0400   Not tainted (6.1.55-d23900f.ppcnf-fs p2)

MSR:  00000030 <IR,DR>  CR: 00001000  XER: 20000000

GPR00: c00110ac bffebe63 bffebe7e bffebe88 8c008000 00001000 00000d12 b7ee2000

GPR08: 00000033 00000000 00000000 c139df10 48224824 1016c314 10160000 00000000

GPR16: 10160000 10160000 00000008 00000000 10160000 00000000 10160000 1017f5b0

GPR24: 10

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/29017ab1a539101d9c7bec63cc13a019f97b2820Refgit.kernel.org/stable/c/70f6756ad96dd70177dddcfac2fe4bd4bb320746Refgit.kernel.org/stable/c/8ac2689502f986a46f4221e239d4ff2897f1ccb3Refgit.kernel.org/stable/c/f0eee815babed70a749d2496a7678be5b45b4c14Refgit.kernel.org/stable/c/29017ab1a539101d9c7bec63cc13a019f97b2820Refgit.kernel.org/stable/c/70f6756ad96dd70177dddcfac2fe4bd4bb320746Refgit.kernel.org/stable/c/8ac2689502f986a46f4221e239d4ff2897f1ccb3Refgit.kernel.org/stable/c/f0eee815babed70a749d2496a7678be5b45b4c14

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52499?

CVE-2023-52499 is a medium-severity vulnerability. It was published on March 2, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52499?

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-2023-52499?

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-2023-52499?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52499 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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