Local denial of service in Linux kernel raid5 driver



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-52437
CWE-ID CWE-362
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Race condition

EUVDB-ID: #VU86776

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-52437

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper handling of MD_SB_CHANGE_PENDING flags in md/raid5 driver. A local user can exploit the race and crash the kernel.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3 External links

https://bugzilla.redhat.com/show_bug.cgi?id=2265269
https://bugzilla.redhat.com/show_bug.cgi?id=2265270


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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