CVE-2009-1955
Published: 8 June 2009
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.
Notes
Author | Note |
---|---|
mdeslaur | PoC: http://www.milw0rm.com/exploits/8842 |
Priority
Status
Package | Release | Status |
---|---|---|
apache2 Launchpad, Ubuntu, Debian |
dapper |
Released
(2.0.55-4ubuntu2.5)
|
hardy |
Not vulnerable
(uses system apr-util)
|
|
intrepid |
Not vulnerable
(uses system apr-util)
|
|
jaunty |
Not vulnerable
(uses system apr-util)
|
|
upstream |
Needs triage
|
|
apr-util Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
hardy |
Released
(1.2.12+dfsg-3ubuntu0.1)
|
|
intrepid |
Released
(1.2.12+dfsg-7ubuntu0.1)
|
|
jaunty |
Released
(1.2.12+dfsg-8ubuntu0.1)
|
|
upstream |
Released
(1.3.7+dfsg-1)
|
|
Patches: upstream: http://svn.apache.org/viewvc?view=rev&revision=781415 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |