MGASA-2021-0297

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MGASA-2021-0297

Summary: Updated trousers packages fix security vulnerabilities

Details: An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges instead of by the tss user, it fails to drop the root gid privilege when no longer needed (CVE-2020-24330). An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the tss user still has read and write access to the /etc/tcsd.conf file (which contains various settings related to this daemon) (CVE-2020-24331). An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or corrupt existing files, which could possibly lead to a DoS attack (CVE-2020-24332).

References: https://advisories.mageia.org/MGASA-2021-0297.html, https://bugs.mageia.org/show_bug.cgi?id=26658, https://www.openwall.com/lists/oss-security/2020/08/14/1, https://lists.fedoraproject.org/archives/list/[email protected]/thread/SSDL7COIFCZQMUBNAASNMKMX7W5JUHRD/