| Package | Affected versions | Patched versions |
|---|---|---|
| citadel | = 7.11= 7.50= 7.60= 7.80= 7.81= 7.82= 7.84≤ 7.86 |
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.
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