Ubuntu Security Notice 3184-1 - It was discovered that the Irssi buf.pl script set incorrect permissions. A local attacker could use this issue to retrieve another user's window contents. Joseph Bisch discovered that Irssi incorrectly handled comparing nicks. A remote attacker could use this issue to cause Irssi to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that Irssi incorrectly handled invalid nick messages. A remote attacker could use this issue to cause Irssi to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.
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Gentoo Linux Security Advisory 201701-45 - Multiple vulnerabilities have been found in irssi, the worst of which could allow remote attackers to execute arbitrary code. Versions less than 0.8.21 are affected.
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