Published: 03/03/2017 Updated: 19/03/2019

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

The nickcmp function in Irssi prior to 0.8.21 allows remote malicious users to cause a denial of service (NULL pointer dereference and crash) via a message without a nick.

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irssi irssi
debian debian linux 7.0

Debian Bug report logs - #850403 irssi: CVE-2017-5193 CVE-2017-5194 CVE-2017-5195 CVE-2017-5196 Package: src:irssi; Maintainer for src:irssi is Rhonda D'Vine <rhonda@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Fri, 6 Jan 2017 06:33:02 UTC Severity: important Tags: fixed-upstream, patch, ...

Several security issues were fixed in Irssi ...

A NULL pointer dereference has been discovered in the nickcmp function leading to application crash ...

CWE-476 https://irssi.org/security/irssi_sa_2017_01.txt http://www.openwall.com/lists/oss-security/2017/01/06/1 http://www.securityfocus.com/bid/95310 https://security.gentoo.org/glsa/201701-45 https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850403 https://usn.ubuntu.com/3184-1/https://nvd.nist.gov

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CVE-2017-5193

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