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
Published Jun 21, 2011
5.0
MEDIUMCVSS 2.0
EPSS 2.66%
Description
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.
Affected products
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.66% (0.02660) | 85.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.66% (0.02660) | 83.67th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.46% (0.01461) | 79.52th | v4 (v2025.03.14) |
| Dec 17, 2024 | 11.42% (0.11417) | 95.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.40% (0.03404) | 89.94th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
References (8)
- http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3d4e9689dc976b745f5b0c x_refsource_CONFIRMPatch
- http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1d8f16293141f9f9845a6 x_refsource_CONFIRMPatch
- http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/changelog x_refsource_CONFIRM
- http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2/changelog x_refsource_CONFIRM
- http://secunia.com/advisories/44788 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7.83-2squeeze2.diff.gz x_refsource_CONFIRMPatch
- http://www.debian.org/security/2011/dsa-2250 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/48071 vdb-entryx_refsource_BID
| Link | Providers | Tags |
|---|---|---|
| http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3d4e9689dc976b745f5b0c | x_refsource_CONFIRMPatch | |
| http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1d8f16293141f9f9845a6 | x_refsource_CONFIRMPatch | |
| http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/changelog | x_refsource_CONFIRM | |
| http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2/changelog | x_refsource_CONFIRM | |
| http://secunia.com/advisories/44788 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7.83-2squeeze2.diff.gz | x_refsource_CONFIRMPatch | |
| http://www.debian.org/security/2011/dsa-2250 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/48071 | vdb-entryx_refsource_BID |
Change history (0)
No recorded changes yet.