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) via a crafted XML document containing a large number…
Does this matter?
Lower severity and a low EPSS score (8.44%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 8.44% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- webdav/neon
- Source
- secalert@redhat.com
References
- http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
- http://lists.manyfish.co.uk/pipermail/neon/2009-August/001044.html
- http://lists.manyfish.co.uk/pipermail/neon/2009-August/001045.html
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html
- http://rhn.redhat.com/errata/RHSA-2013-0131.html
- http://secunia.com/advisories/36371Vendor Advisory
- http://support.apple.com/kb/HT4435
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:221
- http://www.vupen.com/english/advisories/2009/2341Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52633
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9461
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00924.html
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00945.html
- http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
- http://lists.manyfish.co.uk/pipermail/neon/2009-August/001044.html
- http://lists.manyfish.co.uk/pipermail/neon/2009-August/001045.html
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html
- http://rhn.redhat.com/errata/RHSA-2013-0131.html
- http://secunia.com/advisories/36371Vendor Advisory
- http://support.apple.com/kb/HT4435
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:221
- http://www.vupen.com/english/advisories/2009/2341Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52633
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9461
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00924.html
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00945.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.