CVE-2016-7044

Publication date 21 September 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The unformat_24bit_color function in the format parsing code in Irssi before 0.8.20, when compiled with true-color enabled, allows remote attackers to cause a denial of service (heap corruption and crash) via an incomplete 24bit color code.

From the Ubuntu Security Team

Gabriel Campana and Adrien Guinet discovered that the format parsing code in Irssi did not properly verify 24bit color codes. A remote attacker could use this to cause a denial of service (application crash).

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
irssi	16.04 LTS xenial	Fixed 0.8.19-1ubuntu1.2
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Notes

sbeattie

introduced in 0.17

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
irssi	Upstream: 295a4b7

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3086-1
Irssi vulnerabilities
21 September 2016