Improper locking in Linux kernel xen driver



Published: 2024-09-18
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-46762
CWE-ID CWE-667
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper locking

EUVDB-ID: #VU97538

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-46762

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the DEFINE_SPINLOCK(), irqfd_shutdown() and privcmd_irqfd_assign() functions in drivers/xen/privcmd.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/e997b357b13a7d95de31681fc54fcc34235fa527
http://git.kernel.org/stable/c/112fd2f02b308564724b8e81006c254d20945c4b
http://git.kernel.org/stable/c/611ff1b1ae989a7bcce3e2a8e132ee30e968c557


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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