#VU91334 Information disclosure in Linux kernel - CVE-2021-47314

Vulnerability identifier: #VU91334

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47314

CWE-ID: CWE-200

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 gain access to sensitive information.

The vulnerability exists due to information disclosure within the fsl_ifc_ctrl_remove() and fsl_ifc_ctrl_probe() functions in drivers/memory/fsl_ifc.c. A local user can gain access to sensitive information.

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/8018476756066e97ecb886c3dc024aeb7d5792ad
https://git.kernel.org/stable/c/3b45b8a7d549bd92ec94b5357c2c2c1a7ed107e4
https://git.kernel.org/stable/c/7626ffbea708e5aba6912295c012d2b409a1769f
https://git.kernel.org/stable/c/ee1aa737ba0b75ab8af3444c4ae5bdba36aed6e6
https://git.kernel.org/stable/c/443f6ca6fd186b4fa4e6f377b6e19a91feb1a0d5
https://git.kernel.org/stable/c/b5789e23773f4a852fbfe244b63f675e265d3a7f
https://git.kernel.org/stable/c/48ee69825f7480622ed447b0249123236d3b3ad0
https://git.kernel.org/stable/c/a6b45b4932f7b0c36b41fb56a35ad679ece939a0
https://git.kernel.org/stable/c/8e0d09b1232d0538066c40ed4c13086faccbdff6

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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.