Advisories » MGASA-2021-0365

Updated systemd packages fix security vulnerabilities

Publication date: 22 Jul 2021
Modification date: 17 Feb 2022
Type: security
Affected Mageia releases : 8
CVE: CVE-2020-13529 , CVE-2021-33910

Description

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
(CVE-2021-29270).
                

References

• https://bugs.mageia.org/show_bug.cgi?id=29270
• https://github.com/systemd/systemd-stable/compare/v246.13...v246.15
• https://www.openwall.com/lists/oss-security/2021/07/20/2
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13529
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33910

SRPMS

8/core

• systemd-246.15-1.mga8