#VU63352 Use of uninitialized resource in Google Android - CVE-2022-20008

Vulnerability identifier: #VU63352

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20008

CWE-ID: CWE-908

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Google Android
Operating systems & Components / Operating system

Vendor: Google

Description

The vulnerability allows a local application to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources within the mmc_blk_read_single() function in block.c. A local application can obtain potentially sensitive information from memory when reading from an SD card that triggers errors.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: 10 2020-12-05 - 12

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External links
https://source.android.com/security/bulletin/2022-05-01
https://android.googlesource.com/kernel/common/+/2aea7dc18f4249dc53e53598db50b59c26a60aeb
https://android.googlesource.com/kernel/common/+/8a3679a75730c1babde6bf63e35d227f3305bd90
https://android.googlesource.com/kernel/common/+/8f66dc1a78a743ea3c3f039500d2aa0cddd776d5

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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