New httpd packages are available for Slackware 12.0, 12.1, 12.2, and
-current to fix security issues.

Updated apr-util packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

apr-util is a utility library used with the Apache Portable Runtime (APR). It aims to provide a free library of C data structures and routines. This library contains additional utility interfaces for APR;
including support for XML, LDAP, database interfaces, URI parsing, and more.

An off-by-one overflow flaw was found in the way apr-util processed a variable list of arguments. An attacker could provide a specially crafted string as input for the formatted output conversion routine, which could, on big-endian platforms, potentially lead to the disclosure of sensitive information or a denial of service (application crash). (CVE-2009-1956)

Note: The CVE-2009-1956 flaw only affects big-endian platforms, such as the IBM S/390 and PowerPC. It does not affect users using the apr-util package on little-endian platforms, due to their different organization of byte ordering used to represent particular data.

A denial of service flaw was found in the apr-util Extensible Markup Language (XML) parser. A remote attacker could create a specially crafted XML document that would cause excessive memory consumption when processed by the XML decoding engine. (CVE-2009-1955)

A heap-based underwrite flaw was found in the way apr-util created compiled forms of particular search patterns. An attacker could formulate a specially crafted search keyword, that would overwrite arbitrary heap memory locations when processed by the pattern preparation engine. (CVE-2009-0023)

All apr-util users should upgrade to these updated packages, which contain backported patches to correct these issues. Applications using the Apache Portable Runtime library, such as httpd, must be restarted for this update to take effect.

An off-by-one overflow flaw was found in the way apr-util processed a variable list of arguments. An attacker could provide a specially crafted string as input for the formatted output conversion routine, which could, on big-endian platforms, potentially lead to the disclosure of sensitive information or a denial of service (application crash). (CVE-2009-1956)

A denial of service flaw was found in the apr-util Extensible Markup Language (XML) parser. A remote attacker could create a specially crafted XML document that would cause excessive memory consumption when processed by the XML decoding engine. (CVE-2009-1955)

A heap-based underwrite flaw was found in the way apr-util created compiled forms of particular search patterns. An attacker could formulate a specially crafted search keyword, that would overwrite arbitrary heap memory locations when processed by the pattern preparation engine. (CVE-2009-0023)

Applications using the Apache Portable Runtime library, such as httpd, must be restarted for this update to take effect.

Matthew Palmer discovered an underflow flaw in apr-util as included in Apache. An attacker could cause a denial of service via application crash in Apache using a crafted SVNMasterURI directive, .htaccess file, or when using mod_apreq2. This issue only affected Ubuntu 6.06 LTS. (CVE-2009-0023)

Sander de Boer discovered that mod_proxy_ajp would reuse connections when a client closed a connection without sending a request body. A remote attacker could exploit this to obtain sensitive response data.
This issue only affected Ubuntu 9.04. (CVE-2009-1191)

Jonathan Peatfield discovered that Apache did not process Includes options correctly. With certain configurations of Options and AllowOverride, a local attacker could use an .htaccess file to override intended restrictions and execute arbitrary code via a Server-Side-Include file. This issue affected Ubuntu 8.04 LTS, 8.10 and 9.04. (CVE-2009-1195)

It was discovered that the XML parser did not properly handle entity expansion. A remote attacker could cause a denial of service via memory resource consumption by sending a crafted request to an Apache server configured to use mod_dav or mod_dav_svn. This issue only affected Ubuntu 6.06 LTS. (CVE-2009-1955)

C. Michael Pilato discovered an off-by-one buffer overflow in apr-util when formatting certain strings. For big-endian machines (powerpc, hppa and sparc in Ubuntu), a remote attacker could cause a denial of service or information disclosure leak. All other architectures for Ubuntu are not considered to be at risk. This issue only affected Ubuntu 6.06 LTS. (CVE-2009-1956).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Backport security fixes from upstream version 1.3.7: - CVE-2009-0023 Fix underflow in apr_strmatch_precompile. - CVE-2009-1955 Fix a denial of service attack against the apr_xml_* interface using the 'billion laughs' entity expansion technique. - CVE-2009-1956 Fix off by one overflow in apr_brigade_vprintf. Note: CVE-2009-1956 is only an issue on big-endian architectures.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2009-69:01 advisory.

    The mission of the Apache Portable Runtime (APR) is to provide a free library of C data structures and     routines.  This library contains additional utility interfaces for APR; including support for XML, LDAP,     database interfaces, URI parsing and more.
    Fixed bugs:
    CVE-2009-0023     The apr_strmatch_precompile function in strmatch/apr_strmatch.c in Apache APR-util before 1.3.5 allows     remote attackers to cause a denial of service (daemon crash) via crafted input involving (1) a .htaccess     file used with the Apache HTTP Server, (2) the SVNMasterURI directive in the mod_dav_svn module in the     Apache HTTP Server, (3) the mod_apreq2 module for the Apache HTTP Server, or (4) an application that uses     the libapreq2 library, related to an underflow flaw.
    CVE-2009-1955     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.
    CVE-2009-1956     Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian     platforms allows remote attackers to obtain sensitive information or cause a denial of service     (application crash) via crafted input.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

CVE-2009-2412: allocator alignment fixes Full details here:
http://www.apache.org/dist/apr/patches/

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
40459	Slackware 12.0 / 12.1 / 12.2 / current : httpd (SSA:2009-214-01)	Nessus	Slackware Local Security Checks	2009/8/3	2021/1/14	high
43758	CentOS 5 : apr-util (CESA-2009:1107)	Nessus	CentOS Local Security Checks	2010/1/6	2021/1/4	high
60597	Scientific Linux Security Update : apr-util on SL4.x, SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
39371	Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : apache2 vulnerabilities (USN-787-1)	Nessus	Ubuntu Local Security Checks	2009/6/12	2021/1/19	high
39504	Fedora 9 : apr-util-1.2.12-7.fc9 (2009-6014)	Nessus	Fedora Local Security Checks	2009/6/25	2021/1/11	high
284011	MiracleLinux 3 : apr-util-1.2.7-7AXS3.1 (AXSA:2009-69:01)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/14	high
40505	Fedora 10 : apr-util-1.3.9-1.fc10 (2009-8318)	Nessus	Fedora Local Security Checks	2009/8/7	2021/1/11	critical

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