MGASA-2021-0365

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MGASA-2021-0365

Summary: Updated systemd packages fix security vulnerabilities

Details: 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://advisories.mageia.org/MGASA-2021-0365.html, 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