CVE-2009-2473 neon before 0.28.6, when expat is used, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) v...
MediumCVSS 4.3
EPSS 8.4%
PoC
- Published
- Updated
- Exploit status
- Proof-of-concept only
Description
neon before 0.28.6, when expat is used, does not properly detect recursion during entity expansion, which allows context-dependent 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
| Product | Affected versions | Fixed in |
|---|---|---|
| webdav neon | = 0.28.6 | No fix listed |
References
- Debian Security Tracker CVE-2009-2473 vendor-advisory
- APPLE-SA-2010-11-10-1 vendor-advisory
- [neon] 20090818 neon: release 0.28.6 (SECURITY) mailing-list
- [neon] 20090818 CVE-2009-2473: fix for "billion laughs" attack against expat mailing-list
- SUSE-SR:2009:018 vendor-advisory
- RHSA-2013:0131 vendor-advisory
- 36371 third-party-advisory vendor-advisory
- support.apple.com
- MDVSA-2009:221 vendor-advisory
- ADV-2009-2341 patch vdb-entry vendor-advisory
- neon-xml-dos(52633) vdb-entry
- oval:org.mitre.oval:def:9461 signature vdb-entry
- FEDORA-2009-8794 vendor-advisory
- FEDORA-2009-8815 vendor-advisory