Select your cookie preferences

We use cookies and similar tools to enhance your experience, provide our services, deliver relevant advertising, and make improvements. Approved third parties also use these tools to help us deliver advertising and provide certain site features.

CVE-2020-26541

Public on 2020-10-02
Modified on 2022-01-10
Description

A flaw was found in the Linux kernel in certs/blacklist.c, When signature entries for EFI_CERT_X509_GUID are contained in the Secure Boot Forbidden Signature Database, the entries are skipped. This can cause a security threat and breach system integrity, confidentiality and even lead to a denial of service problem.

Severity
Medium
See what this means
CVSS v3 Base Score
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-01-20 23:37 ALAS2KERNEL-5.10-2022-002
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-01-12 19:26 ALAS2KERNEL-5.4-2022-004

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.5 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
NVD CVSSv2 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C
NVD CVSSv3 6.5 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2020-26541 Mitre: CVE-2020-26541 FAQs regarding Amazon Linux ALAS/CVE Severity