CVE-2020-25661: red hat kernel Type Confusion
Vulnerability summary
CVE-2020-25661 is a high (CVSS 8.8) Type Confusion vulnerability in red hat kernel. EPSS estimates a 1.79% chance of exploitation in the next 30 days, higher than 78% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 05-11-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A Red Hat only CVE-2020-12351 regression issue was found in the way the Linux kernel's Bluetooth implementation handled L2CAP packets with A2MP CID. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CVSS metrics
4 scores · 3 sources · 2 versions- CVE.orgCNA7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
1.79%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
0.00 pp
From 1.79% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu2 products
- linux-hweAll versions (No fix recorded)
- linux-raspi2All versions (No fix recorded)
Red hat1 product
- kernelkernel-4.18.0-240.el8
Redhat1 product
3 vendors · 4 products
References
6 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25661X Refsource CONFIRMIssue TrackingMitigationVendor Advisory