CVE-2020-25641
- State
- Published
- Severity
- Not scored
- Published
- Oct 6, 2020
- Updated
- Aug 4, 2024
- Reserved
- Sep 16, 2020
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.
Scores
The record has no CVSS score.
Weaknesses
Affected Products
| Product | Versions |
|---|---|
kerneln/a |
|
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1881424
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7e24969022cbd61ddc586f14824fc205661bb124
- https://www.kernel.org/doc/html/latest/block/biovecs.html
- [oss-security] 20201006 Re: CVE-2020-25641 kernel: soft lockup when submitting zero length bvecs.mailing-list
- openSUSE-SU-2020:1655vendor-advisory
- USN-4576-1vendor-advisory
- openSUSE-SU-2020:1698vendor-advisory
- [debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security updatemailing-list
- [debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression updatemailing-list
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