CVE-2020-25641

MEDIUM

Linux Kernel < 5.8.13 - Infinite Loop

Title source: rule
STIX 2.1

Description

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.

References (9)

Core 9
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1881424
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2020/10/06/9
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4576-1/
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html

Scores

CVSS v3 5.5
EPSS 0.0002
EPSS Percentile 5.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-835
Status published
Products (9)
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
debian/debian_linux 9.0
linux/linux_kernel 5.9.0 (7 CPE variants)
linux/linux_kernel < 5.8.13
opensuse/leap 15.1
opensuse/leap 15.2
redhat/enterprise_linux 7.0
redhat/enterprise_linux 8.0
Published Oct 06, 2020
Tracked Since Feb 18, 2026