CVE-2018-14642

Description

An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which may contain data from previous requests.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.79% Top 30%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat undertow
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14642 patch vendor advisory issue tracking
https://access.redhat.com/errata/RHSA-2019:0364 vendor advisory
https://access.redhat.com/errata/RHSA-2019:0362 vendor advisory
https://access.redhat.com/errata/RHSA-2019:0365 vendor advisory
https://access.redhat.com/errata/RHSA-2019:0380 vendor advisory
https://access.redhat.com/errata/RHSA-2019:1107 vendor advisory
https://access.redhat.com/errata/RHSA-2019:1108 vendor advisory
https://access.redhat.com/errata/RHSA-2019:1106 vendor advisory
https://access.redhat.com/errata/RHSA-2019:1140 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-14642?
CVE-2018-14642 has been scored as a medium severity vulnerability.
How to fix CVE-2018-14642?
To fix CVE-2018-14642, 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-2018-14642 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-14642 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-14642?
CVE-2018-14642 affects Red Hat undertow.
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