Rewterz Threat Advisory – CVE-2020-25641 – Linux Kernel biovec usage denial of service

Severity

Medium

Analysis Summary

CVE-2020-25641

Linux Kernel is vulnerable to a denial of service, caused by a use-after-free flaw in the biovec usage implementation. By sending a zero-length biovec request to the block subsystem, a local attacker could exploit this vulnerability to cause the kernel to enter an infinite loop.

Impact

Denial of service

Affected Vendors

Linux

Affected Products

Linux Kernel 4.10

Remediation

Refer to vendor advisory for the complete list of affected products and respective patches.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7e24969022cbd61ddc586f14824fc205661bb124

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