#VU91484 Race condition in Linux kernel - CVE-2023-52609

Vulnerability identifier: #VU91484

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-52609

CWE-ID: CWE-362

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the binder_update_page_range() function in drivers/android/binder_alloc.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/95b1d336b0642198b56836b89908d07b9a0c9608
https://git.kernel.org/stable/c/252a2a5569eb9f8d16428872cc24dea1ac0bb097
https://git.kernel.org/stable/c/7e7a0d86542b0ea903006d3f42f33c4f7ead6918
https://git.kernel.org/stable/c/98fee5bee97ad47b527a997d5786410430d1f0e9
https://git.kernel.org/stable/c/6696f76c32ff67fec26823fc2df46498e70d9bf3
https://git.kernel.org/stable/c/67f16bf2cc1698fd50e01ee8a2becc5a8e6d3a3e
https://git.kernel.org/stable/c/77d210e8db4d61d43b2d16df66b1ec46fad2ee01
https://git.kernel.org/stable/c/9a9ab0d963621d9d12199df9817e66982582d5a5

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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.