high
7.5
CWE
399 776
Advisory Published
CVE Published
Updated

CVE-2011-1755

First published: Thu Apr 28 2011(Updated: )

jabberd2 before 2.2.14 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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/jabberd<2.2.14
2.2.14
jabberd2=2.1
jabberd2=2.1.8
jabberd2=2.2.2
jabberd2=2.1.18
jabberd2=2.2.7
jabberd2<=2.2.13
jabberd2=2.1.11
jabberd2=2.2.0
jabberd2=2.1.12
jabberd2=2.1.21
jabberd2=2.1.15
jabberd2=2.1.24
jabberd2=2.2.11
jabberd2=2.1.1
jabberd2=2.1.5
jabberd2=2.1.20
jabberd2=2.2.3
jabberd2=2.2.5
jabberd2=2.2.10
jabberd2=2.2.7.1
jabberd2=2.1.22
jabberd2=2.1.14
jabberd2=2.1.23
jabberd2=2.2.1
jabberd2=2.1.4
jabberd2=2.1.7
jabberd2=2.1.17
jabberd2=2.2.12
jabberd2=2.1.16
jabberd2=2.2.8
jabberd2=2.1.2
jabberd2=2.2.6
jabberd2=2.2.9
jabberd2=2.1.13
jabberd2=2.1.10
jabberd2=2.1.19
jabberd2=2.1.6
jabberd2=2.2.4
jabberd2=2.1.9
jabberd2=2.1.3
Jabberd<2.2.14
Fedora=13
Fedora=14
Fedora=15
Apple iOS and macOS<10.6.8
Apple iOS and macOS>=10.7.0<10.7.2
Apple macOS Server<10.6.8
Apple macOS Server>=10.7.0<10.7.2

Remedy

http://www.mail-archive.com/jabberd2@lists.xiaoka.com/msg01655.html

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=700390

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-1755?

    CVE-2011-1755 has a severity level that is classified as a denial of service vulnerability.

  • How do I fix CVE-2011-1755?

    To fix CVE-2011-1755, you should upgrade to jabberd2 version 2.2.14 or higher.

  • Which versions are vulnerable to CVE-2011-1755?

    CVE-2011-1755 affects jabberd2 versions prior to 2.2.14.

  • What type of attack does CVE-2011-1755 enable?

    CVE-2011-1755 allows remote attackers to induce memory and CPU consumption, leading to service denial.

  • Is CVE-2011-1755 related to earlier vulnerabilities?

    Yes, CVE-2011-1755 is similar to CVE-2003-1564, as both involve issues with entity expansion in XML.

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