Advisories ยป MGASA-2021-0365

Updated systemd packages fix security vulnerabilities

Publication date: 22 Jul 2021
Type: security
Affected Mageia releases : 8
CVE: CVE-2020-13529 , CVE-2021-33910


This systemd update provides the v246.15 maintenance release and fixes
at least the following security issues:

An exploitable denial-of-service vulnerability exists in Systemd 245.
A specially crafted DHCP FORCERENEW packet can cause a server running
the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An
attacker can forge a pair of FORCERENEW and DCHP ACK packets to
reconfigure the server (CVE-2020-13529).

basic/unit-name.c in systemd 220 through 248 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