CVE-2017-15721

Description

In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to CVE-2017-9468.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.14% Top 25%
Vendor Advisory debian.org Vendor Advisory irssi.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.debian.org/security/2017/dsa-4016 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html third party advisory mailing list
https://irssi.org/security/irssi_sa_2017_10.txt patch vendor advisory mitigation
http://openwall.com/lists/oss-security/2017/10/22/4 patch mailing list mitigation third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-15721?
CVE-2017-15721 has been scored as a high severity vulnerability.
How to fix CVE-2017-15721?
To fix CVE-2017-15721, 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-2017-15721 being actively exploited in the wild?
It is possible that CVE-2017-15721 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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