CVE-2021-41864high
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.
References
https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657a
https://security.netapp.com/advisory/ntap-20211029-0004/
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
https://www.debian.org/security/2022/dsa-5096
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Details
Source: MITRE
Published: 2021-10-02
Updated: 2022-03-25
Type: CWE-190
Risk Information
CVSS v2
Base Score: 4.6
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.9
Severity: MEDIUM
CVSS v3
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH