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medium5.5

CVE-2020-25641

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7.

Impact

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
through 5.8.13
Version 5.9.0
RedhatEnterprise Linux
Versions 7.0, 8.0
OpensuseLeap
Versions 15.1, 15.2
DebianDebian Linux
Version 9.0
CanonicalUbuntu Linux
Versions 18.04, 20.04

Weakness classification

CWE-835

References