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CVE-2021-45940

Published: 1 January 2022

libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (4 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).

Notes

AuthorNote
mdeslaur
same commit as CVE-2021-45941

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
libbpf
Launchpad, Ubuntu, Debian
kinetic
Released (0.8.0-1ubuntu22.10.1)
impish Ignored
(end of life)
trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored
(end of standard support)
hirsute Ignored
(end of life)
jammy Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
Patches:
upstream: https://github.com/libbpf/libbpf/commit/741277511035893c72a34df05da3b943afa747a4

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H