CVE-2011-1755

jabberd: DoS via the XML "billion laughs attack"

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

jabberd2 antes de v2.2.14 no detecta correctamente la recursividad durante la expansión de la entidad, lo que permite a atacantes remotos provocar una denegación de servicio ( consumo de memoria y CPU ) a través de un documento XML manipulado que contiene un gran número de referencias a entidades anidadas, un problema similar a CVE-2003-1564.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-04-19 CVE Reserved
2011-06-17 CVE Published
2024-02-03 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

CAPEC

References (17)

URL	Tag	Source
http://codex.xiaoka.com/svn/jabberd2/tags/jabberd-2.2.14/ChangeLog	Broken Link
http://secunia.com/advisories/44957	Broken Link
http://secunia.com/advisories/45112	Broken Link
http://support.apple.com/kb/HT5002	Third Party Advisory
http://www.mail-archive.com/jabberd2%40lists.xiaoka.com/msg01655.html	Mailing List
http://www.securityfocus.com/bid/48250	Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/67770	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=700390	2011-06-16

URL	Date	SRC
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html	2024-02-02
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061341.html	2024-02-02
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061458.html	2024-02-02
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061482.html	2024-02-02
http://secunia.com/advisories/44787	2024-02-02
http://www.redhat.com/support/errata/RHSA-2011-0881.html	2024-02-02
http://www.redhat.com/support/errata/RHSA-2011-0882.html	2024-02-02
https://hermes.opensuse.org/messages/9197650	2024-02-02
https://access.redhat.com/security/cve/CVE-2011-1755	2011-06-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Jabberd2 Search vendor "Jabberd2"		Jabberd2 Search vendor "Jabberd2" for product "Jabberd2"				< 2.2.14 Search vendor "Jabberd2" for product "Jabberd2" and version " < 2.2.14"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				13 Search vendor "Fedoraproject" for product "Fedora" and version "13"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				14 Search vendor "Fedoraproject" for product "Fedora" and version "14"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				15 Search vendor "Fedoraproject" for product "Fedora" and version "15"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				< 10.6.8 Search vendor "Apple" for product "Mac Os X" and version " < 10.6.8"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				>= 10.7.0 < 10.7.2 Search vendor "Apple" for product "Mac Os X" and version " >= 10.7.0 < 10.7.2"		-		Affected
Apple Search vendor "Apple"		Mac Os X Server Search vendor "Apple" for product "Mac Os X Server"				< 10.6.8 Search vendor "Apple" for product "Mac Os X Server" and version " < 10.6.8"		-		Affected
Apple Search vendor "Apple"		Mac Os X Server Search vendor "Apple" for product "Mac Os X Server"				>= 10.7.0 < 10.7.2 Search vendor "Apple" for product "Mac Os X Server" and version " >= 10.7.0 < 10.7.2"		-		Affected