MGASA-2018-0069

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MGASA-2018-0069

Summary: Updated irssi packages fix security vulnerabilities

Details: Joseph Bisch discovered that Irssi incorrectly handled incomplete escape codes. If a user were tricked into using malformed commands or opening malformed files, an attacker could use this issue to cause Irssi to crash, resulting in a denial of service (CVE-2018-5205). Joseph Bisch discovered that Irssi incorrectly handled settings the channel topic without specifying a sender. A malicious IRC server could use this issue to cause Irssi to crash, resulting in a denial of service (CVE-2018-5206). Joseph Bisch discovered that Irssi incorrectly handled incomplete variable arguments. If a user were tricked into using malformed commands or opening malformed files, an attacker could use this issue to cause Irssi to crash, resulting in a denial of service (CVE-2018-5207). Joseph Bisch discovered that Irssi incorrectly handled completing certain strings. An attacker could use this issue to cause Irssi to crash, resulting in a denial of service, or possibly execute arbitrary code (CVE-2018-5208).

References: https://advisories.mageia.org/MGASA-2018-0069.html, https://bugs.mageia.org/show_bug.cgi?id=22328, https://usn.ubuntu.com/usn/usn-3527-1/