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…
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 2 months later
· 2 months later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (12)
- ejabberd-xml-dos(67769) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- DSA-2248 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.7/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 44765 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://git.process-one.net/ejabberd/mainline/commit/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2011-8415 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.ejabberd.im/ejabberd-2.1.7 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=700454 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 44807 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 48072 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2011-8437 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 45120 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1753)Record last updated .