CVE-2020-25662: red hat kernel Improper Access Control
Vulnerability summary
CVE-2020-25662 is a medium (CVSS 6.5) Improper Access Control vulnerability in red hat kernel. EPSS estimates a 1.18% chance of exploitation in the next 30 days, higher than 67.2% 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-2020-12352 regression issue was found in the way the Linux kernel's Bluetooth stack implementation handled the initialization of stack memory when handling certain AMP packets. This flaw allows a remote attacker in an adjacent range to leak small portions of stack memory on the system by sending specially crafted AMP packets. The highest threat from this vulnerability is to data confidentiality.
CVSS metrics
4 scores · 3 sources · 2 versions- CVE.orgCNA5.3MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
1.18%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
0.00 pp
From 1.18% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-284Improper Access ControlThe product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
- CWE-665Improper InitializationThe product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.
Affected 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- access.redhat.com/security/vulnerabilities/BleedingToothVendor Advisory