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CVE-2021-46908 (Medium) detected in linux-stable-rtv4.1.33 #915

Open mend-bolt-for-github[bot] opened 6 months ago

mend-bolt-for-github[bot] commented 6 months ago

CVE-2021-46908 - Medium Severity Vulnerability

Vulnerable Library - linux-stable-rtv4.1.33

Julia Cartwright's fork of linux-stable-rt.git

Library home page: https://git.kernel.org/pub/scm/linux/kernel/git/julia/linux-stable-rt.git

Found in HEAD commit: 2a4fd3afc623ae79fea13880ff39350d42fea4e6

Found in base branch: master

Vulnerable Source Files (2)

/kernel/bpf/verifier.c /kernel/bpf/verifier.c

Vulnerability Details

In the Linux kernel, the following vulnerability has been resolved: bpf: Use correct permission flag for mixed signed bounds arithmetic We forbid adding unknown scalars with mixed signed bounds due to the spectre v1 masking mitigation. Hence this also needs bypass_spec_v1 flag instead of allow_ptr_leaks.

Publish Date: 2024-02-27

URL: CVE-2021-46908

CVSS 3 Score Details (5.5)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.linuxkernelcves.com/cves/CVE-2021-46908

Release Date: 2024-02-27

Fix Resolution: v5.10.32,v5.11.16

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