Executive Summary

Summary
Title libxslt: Execution of arbitrary code
Informations
Name GLSA-200808-06 First vendor Publication 2008-08-06
Vendor Gentoo Last vendor Modification 2008-08-06
Severity (Vendor) Normal Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

libxslt is affected by a heap-based buffer overflow, possibly leading to the execution of arbitrary code.

Background

libxslt is the XSLT C library developed for the GNOME project. XSLT is an XML language to define transformations for XML.

Description

Chris Evans (Google Security) reported that the libexslt library that is part of libxslt is affected by a heap-based buffer overflow in the RC4 encryption/decryption functions.

Impact

A remote attacker could entice a user to process an XML file using a specially crafted XSLT stylesheet in an application linked against libxslt, possibly leading to the execution of arbitrary code with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All libxslt users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxslt-1.1.24-r1"

References

[ 1 ] CVE-2008-2935 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2935

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200808-06.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-200808-06.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10827
 
Oval ID: oval:org.mitre.oval:def:10827
Title: Multiple heap-based buffer overflows in the rc4 (1) encryption (aka exsltCryptoRc4EncryptFunction) and (2) decryption (aka exsltCryptoRc4DecryptFunction) functions in crypto.c in libexslt in libxslt 1.1.8 through 1.1.24 allow context-dependent attackers to execute arbitrary code via an XML file containing a long string as "an argument in the XSL input."
Description: Multiple heap-based buffer overflows in the rc4 (1) encryption (aka exsltCryptoRc4EncryptFunction) and (2) decryption (aka exsltCryptoRc4DecryptFunction) functions in crypto.c in libexslt in libxslt 1.1.8 through 1.1.24 allow context-dependent attackers to execute arbitrary code via an XML file containing a long string as "an argument in the XSL input."
Family: unix Class: vulnerability
Reference(s): CVE-2008-2935
 Version: 5
Platform(s): Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
 Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:17713
 
Oval ID: oval:org.mitre.oval:def:17713
Title: USN-633-1 -- libxslt vulnerabilities
Description: It was discovered that long transformation matches in libxslt could overflow.
Family: unix Class: patch
Reference(s): USN-633-1
CVE-2008-1767
CVE-2008-2935
 Version: 7
Platform(s): Ubuntu 6.06
Ubuntu 7.04
Ubuntu 7.10
Ubuntu 8.04
 Product(s): libxslt
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:20386
 
Oval ID: oval:org.mitre.oval:def:20386
Title: DSA-1624-1 libxslt - arbitrary code execution
Description: Chris Evans discovered that a buffer overflow in the RC4 functions of libexslt may lead to the execution of arbitrary code.
Family: unix Class: patch
Reference(s): DSA-1624-1
CVE-2008-2935
 Version: 5
Platform(s): Debian GNU/Linux 4.0
 Product(s): libxslt
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22165
 
Oval ID: oval:org.mitre.oval:def:22165
Title: ELSA-2008:0649: libxslt security update (Moderate)
Description: Multiple heap-based buffer overflows in the rc4 (1) encryption (aka exsltCryptoRc4EncryptFunction) and (2) decryption (aka exsltCryptoRc4DecryptFunction) functions in crypto.c in libexslt in libxslt 1.1.8 through 1.1.24 allow context-dependent attackers to execute arbitrary code via an XML file containing a long string as "an argument in the XSL input."
Family: unix Class: patch
Reference(s): ELSA-2008:0649-03
CVE-2008-2935
 Version: 6
Platform(s): Oracle Linux 5
 Product(s): libxslt
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:29029
 
Oval ID: oval:org.mitre.oval:def:29029
Title: RHSA-2008:0649 -- libxslt security update (Moderate)
Description: Updated libxslt packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. libxslt is a library for transforming XML files into other XML files using the standard XSLT stylesheet transformation mechanism. A heap buffer overflow flaw was discovered in the RC4 libxslt library extension. An attacker could create a malicious XSL file that would cause a crash, or, possibly, execute arbitrary code with the privileges of the application using the libxslt library to perform XSL transformations on untrusted XSL style sheets. (CVE-2008-2935) Red Hat would like to thank Chris Evans for reporting this vulnerability. All libxslt users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.
Family: unix Class: patch
Reference(s): RHSA-2008:0649
CESA-2008:0649-CentOS 5
CVE-2008-2935
 Version: 3
Platform(s): Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 4
CentOS Linux 5
 Product(s): libxslt
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:7764
 
Oval ID: oval:org.mitre.oval:def:7764
Title: DSA-1624 liebxslt -- buffer overflows
Description: Chris Evans discovered that a buffer overflow in the RC4 functions of libexslt may lead to the execution of arbitrary code.
Family: unix Class: patch
Reference(s): DSA-1624
CVE-2008-2935
 Version: 3
Platform(s): Debian GNU/Linux 4.0
 Product(s): libxslt
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17

OpenVAS Exploits

Date Description
2009-10-13 Name : SLES10: Security update for libxslt
File : nvt/sles10_libxslt.nasl
2009-04-09 Name : Mandriva Update for libxslt MDVSA-2008:160 (libxslt)
File : nvt/gb_mandriva_MDVSA_2008_160.nasl
2009-03-23 Name : Ubuntu Update for libxslt vulnerabilities USN-633-1
File : nvt/gb_ubuntu_USN_633_1.nasl
2009-03-06 Name : RedHat Update for libxslt RHSA-2008:0649-01
File : nvt/gb_RHSA-2008_0649-01_libxslt.nasl
2009-02-17 Name : Fedora Update for libxslt FEDORA-2008-7029
File : nvt/gb_fedora_2008_7029_libxslt_fc8.nasl
2009-02-17 Name : Fedora Update for libxslt FEDORA-2008-7062
File : nvt/gb_fedora_2008_7062_libxslt_fc9.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200808-06 (libxslt)
File : nvt/glsa_200808_06.nasl
2008-08-15 Name : Debian Security Advisory DSA 1624-1 (libxslt)
File : nvt/deb_1624_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
47544 libxslt libexslt crypto.c Multiple Function XML Parsing Overflows

Snort® IPS/IDS

Date Description
2014-01-10 GNOME Project libxslt RC4 key string buffer overflow attempt - 2
RuleID : 14041 - Revision : 16 - Type : SERVER-OTHER
2014-01-10 GNOME Project libxslt RC4 key string buffer overflow attempt
RuleID : 14040 - Revision : 14 - Type : SERVER-OTHER
2014-01-10 GNOME Project libxslt RC4 key string buffer overflow attempt
RuleID : 14039 - Revision : 20 - Type : FILE-OTHER

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2008-0649.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20080731_libxslt_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2010-01-06 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2008-0649.nasl - Type : ACT_GATHER_INFO
2009-07-21 Name : The remote openSUSE host is missing a security update.
File : suse_11_0_libxslt-080720.nasl - Type : ACT_GATHER_INFO
2009-04-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2008-160.nasl - Type : ACT_GATHER_INFO
2008-09-03 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_libxslt-5457.nasl - Type : ACT_GATHER_INFO
2008-09-03 Name : The remote openSUSE host is missing a security update.
File : suse_libxslt-5458.nasl - Type : ACT_GATHER_INFO
2008-08-08 Name : The remote Fedora host is missing a security update.
File : fedora_2008-7029.nasl - Type : ACT_GATHER_INFO
2008-08-08 Name : The remote Fedora host is missing a security update.
File : fedora_2008-7062.nasl - Type : ACT_GATHER_INFO
2008-08-07 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200808-06.nasl - Type : ACT_GATHER_INFO
2008-08-04 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-633-1.nasl - Type : ACT_GATHER_INFO
2008-08-01 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1624.nasl - Type : ACT_GATHER_INFO
2008-08-01 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2008-0649.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:36:01
  • Multiple Updates