CVE-2018-19131

Description

Squid before 4.4 has XSS via a crafted X.509 certificate during HTTP(S) error page generation for certificate errors.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 20.01% Top 5%
Vendor Advisory squid-cache.org Vendor Advisory squid-cache.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patch patch vendor advisory
http://www.squid-cache.org/Advisories/SQUID-2018_4.txt mitigation vendor advisory
https://github.com/squid-cache/squid/pull/306 third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-19131?
CVE-2018-19131 has been scored as a medium severity vulnerability.
How to fix CVE-2018-19131?
To fix CVE-2018-19131, 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-2018-19131 being actively exploited in the wild?
It is possible that CVE-2018-19131 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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