CVE-2011-1753
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…
Does this matter?
Lower severity and a low EPSS score (2.13%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 2.13% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- process-one/ejabberd · process-one/exmpp
- Source
- secalert@redhat.com
References
- 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/44765Vendor Advisory
- http://secunia.com/advisories/44807Vendor Advisory
- http://secunia.com/advisories/45120
- http://www.debian.org/security/2011/dsa-2248
- http://www.ejabberd.im/ejabberd-2.1.7Patch
- 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/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6Patch
- 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/44765Vendor Advisory
- http://secunia.com/advisories/44807Vendor Advisory
- http://secunia.com/advisories/45120
- http://www.debian.org/security/2011/dsa-2248
- http://www.ejabberd.im/ejabberd-2.1.7Patch
- 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/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.