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.

Remediation

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14642

https://access.redhat.com/errata/RHSA-2019:0365

https://access.redhat.com/errata/RHSA-2019:0364

https://access.redhat.com/errata/RHSA-2019:0362

https://access.redhat.com/errata/RHSA-2019:0380

https://access.redhat.com/errata/RHSA-2019:1108

https://access.redhat.com/errata/RHSA-2019:1107

https://access.redhat.com/errata/RHSA-2019:1106

https://access.redhat.com/errata/RHSA-2019:1140

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Severity

Medium

Classification

CWE-200 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Tags

Issue Tracking Patch Vendor Advisory