CVE-2021-41864

 

Published at: - 02-10-2021 02:15

Last modified: - 26-10-2022 01:44

Total changes: - 12

Description

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=30e29a9a2bc6a4888335a6ede968b75cd329657a
• https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657a
• FEDORA-2021-79cbbefebe-Mailing List, Third Party Advisory
• FEDORA-2021-ffda3d6fa1-Mailing List, Third Party Advisory
• FEDORA-2021-9dd76a1ed0-Mailing List, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20211029-0004/
• [debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update-Mailing List, Third Party Advisory
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
• DSA-5096-Third Party Advisory
• [debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2021-41864

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures