Bug 787104 (CVE-2012-0881) - CVE-2012-0881 xml: xerces-j2 hash table collisions CPU usage DoS (oCERT-2011-003)
Summary: CVE-2012-0881 xml: xerces-j2 hash table collisions CPU usage DoS (oCERT-2011-...
Alias: CVE-2012-0881
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On:
Blocks: hashdos, oCERT-2011-003 782164
TreeView+ depends on / blocked
Reported: 2012-02-03 07:05 UTC by Kurt Seifried
Modified: 2021-02-24 13:13 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-01-17 04:45:11 UTC

Attachments (Terms of Use)

Description Kurt Seifried 2012-02-03 07:05:28 UTC
Juraj Somorovsky reported that certain XML parsers/servers are affected by the
same, or similar, flaw as the hash table collisions CPU usage denial of
service.  Sending a specially crafted message to an XML service can result in
longer processing time, which could lead to a denial of service.  It is
reported that this attack on XML can be applied on different XML nodes (such as
entities, element attributes, namespaces, various elements in the XML security,

xerces-j2 is written in Java and makes significant use of arrays.

Comment 7 Kurt Seifried 2015-01-17 04:45:11 UTC

This issue affects the versions of xerces as shipped with Red Hat Enterprise Linux 6. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Note You need to log in before you can comment on or make changes to this bug.