CVE-2011-1753

Description

expat_erl.c in ejabberd before 2.1.7 and 3.x before 3.0.0-alpha-3, and exmpp before 0.9.7, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.94% Top 20%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/67769 vdb entry
http://www.debian.org/security/2011/dsa-2248 vendor advisory
http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.7/
http://secunia.com/advisories/44765 third party advisory vendor advisory
https://git.process-one.net/ejabberd/mainline/commit/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6 patch
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062099.html vendor advisory
http://www.ejabberd.im/ejabberd-2.1.7 patch
https://bugzilla.redhat.com/show_bug.cgi?id=700454
http://secunia.com/advisories/44807 third party advisory vendor advisory
http://www.securityfocus.com/bid/48072 vdb entry
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062145.html vendor advisory
http://secunia.com/advisories/45120 third party advisory

Frequently Asked Questions

What is the severity of CVE-2011-1753?
CVE-2011-1753 has been scored as a medium severity vulnerability.
How to fix CVE-2011-1753?
To fix CVE-2011-1753, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1753 being actively exploited in the wild?
It is possible that CVE-2011-1753 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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