Description
LuaExpat before 1.2.0 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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | lua-expat | 1.2.0-1 | — |
| Debian 13 | lua-expat | 1.2.0-1 | — |
| Debian 12 | lua-expat | 1.2.0-1 | — |
References
- 48123 vdb-entry
- [oss-security] 20110606 CVE Request -- LuaExpat -- Prone to XML "billion laughs attack" mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=711027
- [oss-security] 20110606 Re: CVE Request -- LuaExpat -- Prone to XML "billion laughs attack" mailing-list
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629225
- luaexpat-xml-dos(67862) vdb-entry
- 44866 third-party-advisory