CVE-2018-14642

moderate-risk

Published 2018-09-18

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.

Do I need to act?

0.71% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.3/10 Medium

NETWORK / LOW complexity

Affected Products (4)

Undertow

Jboss Enterprise Application Platform

Affected Vendors

Redhat

References (18)

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

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

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-2019:1106

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-2019:1140

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