CVE-2018-1114
First published: Mon Apr 30 2018(Updated: )
It was found that URLResource.getLastModified() in Undertow closes the file descriptors only when they are finalized which can cause file descriptors to exhaust. This leads to a file handler leak.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Undertow | ||
| Red Hat Enterprise Virtualization | =4.0 | |
| Red Hat Enterprise Virtualization | =4.2 | |
| Red Hat Virtualization Host EUS | =4.0 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2018:2643
- https://access.redhat.com/errata/RHSA-2018:2669
- https://access.redhat.com/errata/RHSA-2019:0877
- https://bugs.openjdk.java.net/browse/JDK-6956385
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1114
- https://issues.jboss.org/browse/UNDERTOW-1338
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1573047
- https://bugzilla.redhat.com/show_bug.cgi?id=1573045
Frequently Asked Questions
What is the severity of CVE-2018-1114?
CVE-2018-1114 has been classified as a moderate severity vulnerability due to the potential for file descriptor exhaustion.
How do I fix CVE-2018-1114?
To fix CVE-2018-1114, users should upgrade to the patched version of Undertow or Red Hat virtualization software that addresses this file handler leak issue.
What causes the vulnerability CVE-2018-1114?
CVE-2018-1114 is caused by the improper handling of file descriptors in the URLResource.getLastModified() method when using JarURLConnection.
Which software versions are affected by CVE-2018-1114?
CVE-2018-1114 affects several versions of Red Hat Undertow and Red Hat Enterprise Virtualization, specifically indicated in the vulnerability details.
Can CVE-2018-1114 be exploited remotely?
Yes, CVE-2018-1114 can potentially be exploited remotely due to its nature of leaking file handlers through URL resource requests.
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