CVE-2017-5356

Public Exploit

Description

Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket (]).

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.74% Top 15%
Vendor Advisory irssi.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html third party advisory mailing list
http://www.securityfocus.com/bid/96581 third party advisory vdb entry
https://blog.fuzzing-project.org/55-Fuzzing-Irssi-with-Perl-Scripts.html third party advisory exploit technical description
https://irssi.org/security/irssi_sa_2017_01.txt patch vendor advisory
http://www.openwall.com/lists/oss-security/2017/01/12/8 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2017/01/13/2 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2017-5356?
CVE-2017-5356 has been scored as a high severity vulnerability.
How to fix CVE-2017-5356?
To fix CVE-2017-5356, 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-2017-5356 being actively exploited in the wild?
It is possible that CVE-2017-5356 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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