Entreprise d'experts en Sécurité Informatique : Audits et conseils en cybersécurité
Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com


CVE-2021-33910

Description

basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.

POC

Reference

- http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html

- https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733b

- https://www.openwall.com/lists/oss-security/2021/07/20/2

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/sam0392in/aws-ecr-image-scanner