CVE-2009-1955

HIGH
7.5
CVSS Score
Published: June 6, 2009 at 06:00 PM UTC
Updated: June 16, 2026 at 11:08 PM UTC
8 products affected across 7 vendorsmacOSDebian LinuxFedora

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Severity
HIGH7.5
Exploit prediction
EPSS 53%

Description

The expat XML parser in the apr_xml_* interface in xml/apr_xml.c in Apache APR-util before 1.3.7, as used in the mod_dav and mod_dav_svn modules in the Apache HTTP Server, allows remote attackers to cause a denial of service (memory consumption) via a crafted XML document containing a large number of nested entity references, as demonstrated by a PROPFIND request, a similar issue to CVE-2003-1564.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.3.7
Affected range stops below 1.3.7, so it looks safe — our inference, not a vendor statement
2.2.0 ≤ v < 2.2.12
Affected range stops below 2.2.12, so it looks safe — our inference, not a vendor statement
v < 10.6.2
Affected range stops below 10.6.2, so it looks safe — our inference, not a vendor statement
All versions

References (60)

Vendor Advisoryx_refsource_APPLEMailing ListThird Party Advisory
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
Vendor Advisoryx_refsource_HPMailing List
http://marc.info/?l=bugtraq&m=129190899612998&w=2
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/34724
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/35284
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/35360
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/35395

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-776

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