CVE-2009-2473
Summary
| CVE | CVE-2009-2473 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2009-08-21 17:30:00 UTC |
| Updated | 2026-04-23 00:35:47 UTC |
| 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:M/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| neon Denial of Service and Spoofing Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| About the security content of Mac OS X v10.6.5 and Security Update 2010-007 | af854a3a-2127-422b-91ae-364da2661108 | support.apple.com | |
| Support / Security / Advisories / / MDVSA-2009:221 | Mandriva | af854a3a-2127-422b-91ae-364da2661108 | www.mandriva.com | |
| APPLE-SA-2010-11-10-1 Mac OS X v10.6.5 and Security Update 2010-007 | af854a3a-2127-422b-91ae-364da2661108 | lists.apple.com | |
| [SECURITY] Fedora 10 Update: neon-0.28.6-1.fc10 | af854a3a-2127-422b-91ae-364da2661108 | www.redhat.com | |
| [SECURITY] Fedora 11 Update: neon-0.28.6-1.fc11 | af854a3a-2127-422b-91ae-364da2661108 | www.redhat.com | |
| [security-announce] SUSE Security Summary Report: SUSE-SR:2009:018 | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| Repository / Oval Repository | af854a3a-2127-422b-91ae-364da2661108 | oval.cisecurity.org | |
| neon: release 0.28.6 (SECURITY) | af854a3a-2127-422b-91ae-364da2661108 | lists.manyfish.co.uk | |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | |
| Webmail : Solution de messagerie professionnelle - OVHcloud- OVH | af854a3a-2127-422b-91ae-364da2661108 | www.vupen.com | Patch, Vendor Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| CVE-2009-2473: fix for "billion laughs" attack against expat | af854a3a-2127-422b-91ae-364da2661108 | lists.manyfish.co.uk | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
| Organization | Published | Contributor | Statement |
|---|---|---|---|
| Red Hat | 2009-09-22 | Tomas Hoger | Updated neon packages for Red Hat Enterprise Linux 4 and 5 were released via: https://rhn.redhat.com/errata/RHSA-2009-1452.html Embedded copy of the neon library is included in the versions of gnome-vfs2 packages as shipped with Red Hat Enteprise Linux 4 and Red Hat Enteprise Linux 5. The Red Hat Security Response Team has rated this issue as having low security impact on gnome-vfs2, future updates may address this flaw. |
There are currently no legacy QID mappings associated with this CVE.