Information disclosure in Google ChromeOS



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-4969
CWE-ID CWE-401
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Chrome OS
Operating systems & Components / Operating system

Vendor Google

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Memory leak

EUVDB-ID: #VU85579

Risk: Low

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

CVE-ID: CVE-2023-4969

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due memory leak through an optimized GPU memory region called _local memory_ on various architectures. A local user can read sensitive data from another GPU kernel.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Chrome OS: before

CPE2.3 External links

https://registry.khronos.org/OpenCL/specs/3.0-unified/html/OpenCL_API.html#_fundamental_memory_regions
https://registry.khronos.org/vulkan/specs/1.3-extensions/html/index.html
https://kb.cert.org/vuls/id/446598
https://blog.trailofbits.com
https://www.kb.cert.org/vuls/id/446598


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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