5.0
MEDIUM
CVE-2011-1753
Ejabberd XML Entity Expansion Denial of Service
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.

INFO

Published Date :

June 21, 2011, 2:52 a.m.

Last Modified :

April 11, 2025, 12:51 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2011-1753 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Process-one ejabberd
2 Process-one exmpp
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2011-1753.

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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2011-1753 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2011-1753 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062099.html
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062145.html
    Added Reference http://secunia.com/advisories/44765
    Added Reference http://secunia.com/advisories/44807
    Added Reference http://secunia.com/advisories/45120
    Added Reference http://www.debian.org/security/2011/dsa-2248
    Added Reference http://www.ejabberd.im/ejabberd-2.1.7
    Added Reference http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.7/
    Added Reference http://www.securityfocus.com/bid/48072
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=700454
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/67769
    Added Reference https://git.process-one.net/ejabberd/mainline/commit/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Aug. 17, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/67769 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/67769 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 21, 2011

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2011-1753 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2011-1753 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.94 }} -0.13%

score

0.81769

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability
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Latest DB Update: May. 24, 2025 18:43