Advisory: Mageia Essential and Critical Security Patch Updates

Mageia 2018-0428: perl-Dancer2 security update

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Dancer2 0.206000 addresses several potential security issues. There is a potential RCE with regards to Storable. Dancer2 adds session ID validation to the session engine so that session backends based on Storable can reject malformed session IDs that may lead to exploitation of the RCE. Parsing requests now uses HTTP::Entity::Parser which reduces the amount of code needed

Mageia 2018-0426: libtiff security update

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The updated packages fix security vulnerabilities: An issue was discovered in LibTIFF 4.0.9. There is a int32 overflow in multiply_ms in tools/ppm2tiff.c, which can cause a denial of service (crash) or possibly have unspecified other impact via a crafted image

Mageia 2018-0423: curl security update

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Updated curl packages fix security vulnerabilities: Peter Wu discovered that curl incorrectly handled certain SMTP buffers. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code (CVE-2018-0500).

Mageia 2018-0421: x11-server security update

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A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges (CVE-2018-14665).