REDHAT-BUG-1404782
First published: Wed Dec 14 2016(Updated: )
Undertow keeps a cache of seen HTTP headers in persistent connections. It was found that this cache can easily exploited to fill memory with garbage, up to "max-headers" (default 200) * "max-header-size" (default 1MB) per active TCP connection. Upstream bug: <a href="https://issues.jboss.org/browse/WFLY-7725">https://issues.jboss.org/browse/WFLY-7725</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Undertow |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://issues.jboss.org/browse/WFLY-7725
- https://rhn.redhat.com/errata/RHSA-2017-0830.html
- https://rhn.redhat.com/errata/RHSA-2017-0832.html
- https://rhn.redhat.com/errata/RHSA-2017-0831.html
- https://rhn.redhat.com/errata/RHSA-2017-0834.html
- https://access.redhat.com/errata/RHSA-2017:0876
- https://access.redhat.com/errata/RHSA-2017:0873
- https://access.redhat.com/errata/RHSA-2017:0872
- https://access.redhat.com/errata/RHSA-2017:3456
- https://access.redhat.com/errata/RHSA-2017:3454
- https://access.redhat.com/errata/RHSA-2017:3455
- https://access.redhat.com/errata/RHSA-2017:3458
- https://bugzilla.redhat.com/show_bug.cgi?id=1404782
Frequently Asked Questions
What is the severity of REDHAT-BUG-1404782?
The severity of REDHAT-BUG-1404782 is considered high due to potential denial of service caused by memory exhaustion.
How do I fix REDHAT-BUG-1404782?
To fix REDHAT-BUG-1404782, you should update JBoss Undertow to the latest version which contains patches for this vulnerability.
What are the affected systems by REDHAT-BUG-1404782?
Affected systems by REDHAT-BUG-1404782 include those running JBoss Undertow with persistent connections.
Can REDHAT-BUG-1404782 lead to data breaches?
While REDHAT-BUG-1404782 primarily leads to denial of service, it does not directly cause data breaches.
Is there a workaround for REDHAT-BUG-1404782?
A temporary workaround for REDHAT-BUG-1404782 may involve limiting the number of active TCP connections or adjusting header limits.
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-9589
- agent/references
- agent/severity
- agent/description
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/jboss
- canonical/undertow