CVE-2017-5193

Description

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

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.86% Top 20%
Vendor Advisory gentoo.org Vendor Advisory irssi.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2017/01/06/1 third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html third party advisory mailing list
https://irssi.org/security/irssi_sa_2017_01.txt patch vendor advisory
http://www.securityfocus.com/bid/95310 vdb entry third party advisory
https://security.gentoo.org/glsa/201701-45 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-5193?
CVE-2017-5193 has been scored as a high severity vulnerability.
How to fix CVE-2017-5193?
To fix CVE-2017-5193, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5193 being actively exploited in the wild?
It is possible that CVE-2017-5193 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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