PT-2009-4411 · Apache+1 · Apache Apr-Util+2

Kingcope · Published 2009-06-01 · Updated 2024-06-15 · CVE-2009-1955

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Apache APR-util versions prior to 1.3.7 Apache HTTP Server (affected versions not specified)

Description: The issue allows remote attackers to cause a denial of service due to excessive memory consumption. This can be achieved by sending a crafted XML document containing a large number of nested entity references. For example, this could be demonstrated by a PROPFIND request. The problem is related to the expat XML parser in the apr xml * interface.

Recommendations: For Apache APR-util versions prior to 1.3.7, update to version 1.3.7 or later to resolve the issue. For the Apache HTTP Server, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

XML Entity Expansion

Weakness Enumeration

CWE-776

Related Identifiers

CVE-2009-1955

DSA-1812-1

HPSBUX02612

OPENSUSE-SU-2024:10268-1

RHSA-2009:1107

RHSA-2009:1108

RHSA-2009:1160

RHSA-2009_1107

RHSA-2010:0602

Affected Products

Apache Apr-Util

Apache Http Server

Red Hat

References · 138

• 🔥 https://exploit-db.com/exploits/8842 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1890 · Security Note
• http://www-01.ibm.com/support/docview.wss?uid=swg1PK99478 · Vendor Advisory
• http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.538210 · Vendor Advisory
• https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E · Patch
• https://osv.dev/vulnerability/CVE-2009-1955 · Vendor Advisory
• http://oracle.com/technetwork/topics/security/cpuapr2013-1899555.html · Patch
• https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E · Patch
• https://redhat.com/archives/fedora-package-announce/2009-June/msg01173.html · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2013:150 · Vendor Advisory
• http://svn.apache.org/viewvc?view=rev&revision=781403 · Patch
• http://security.gentoo.org/glsa/glsa-200907-03.xml · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1452 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1955 · Security Note
• https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E · Patch