Vulnerability Details : CVE-2011-1756
modules/xmpp/serv_xmpp.c in Citadel 7.86 and earlier 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.
Vulnerability category: Denial of service
Products affected by CVE-2011-1756
- cpe:2.3:a:citadel:citadel:*:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.80:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.81:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.82:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.84:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.50:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.60:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.11:*:*:*:*:*:*:*
Threat overview for CVE-2011-1756
Top countries where our scanners detected CVE-2011-1756
Top open port discovered on systems with this issue
2020
IPs affected by CVE-2011-1756 45
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2011-1756!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2011-1756
1.46%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-1756
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
CWE ids for CVE-2011-1756
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1756
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http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/changelog
404 Not Found
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http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1d8f16293141f9f9845a6
404 Not FoundPatch
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http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3d4e9689dc976b745f5b0c
404 Not FoundPatch
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http://www.debian.org/security/2011/dsa-2250
Debian -- Security Information -- DSA-2250-1 citadel
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http://www.securityfocus.com/bid/48071
Citadel XML Parsing Denial of Service Vulnerability
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http://secunia.com/advisories/44788
Sign inVendor Advisory
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http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2/changelog
404 Not Found
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http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7.83-2squeeze2.diff.gz
404 Not FoundPatch
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