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Mageia 7: MGASA-2021-0032 Critical SELinux Vulnerability Alert

Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing) (CVE-2018-1063). . MGASA-2021-0032 - Updated policycoreutils packages fix a security vulnerability Publication date: 17 Jan 2021 URL: https://advisories.mageia.org/MGASA-2021-0032.html Type: security Affected Mageia releases: 7 CVE: CVE-2018-1063 Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing) (CVE-2018-1063). References: - https://bugs.mageia.org/show_bug.cgi?id=22890 - https://access.redhat.com/errata/RHSA-2018:0913 - https://www.cve.org/CVERecord?id=CVE-2018-1063 SRPMS: - 7/core/policycoreutils-2.5-14.1.mga7 . Mageia 2021-0045 fixes a security flaw related to improper handling of memory in the kernel. Continue reading for further information.. Mageia Security Advisory, SELinux Context, Policycoreutils Update. . Severity: Critical. LinuxSecurity.com Team

Jan 17, 2021 •Critical Mageia