libicu REStackFrames denial of service
| libicu-restackframes-dos (39938) |  Low Risk |
Description:
libicu is vulnerable to a denial of service related to corrupt REStackFrames. By sending a specially-crafted regular expression containing illegal backreference referrals to capture group zero, a local attacker could crash linked applications.
Platforms Affected:
- Canonical, Ubuntu 6.06 LTS
- Canonical, Ubuntu 6.10
- Canonical, Ubuntu 7.04
- Canonical, Ubuntu 7.10
- Debian, Debian Linux 4.0
- Gentoo, Linux
- ICU, International Components for Unicode 3.8.1
- MandrakeSoft, Mandrake Linux 2008.0
- MandrakeSoft, Mandrake Linux 2008.0 X86_64
- Novell, Linux Desktop 9
- Novell, OpenSUSE 10.2
- Novell, OpenSUSE 10.3
- Novell, SLE SDK 10 SP1
- Novell, SUSE Linux Enterprise Desktop 10 SP1
- OpenOffice, OpenOffice.org 2.0
- OpenOffice, OpenOffice.org 2.1
- OpenOffice, OpenOffice.org 2.2
- OpenOffice, OpenOffice.org 2.3
- RedHat, Enterprise Linux 5 Client Workstation
- RedHat, Enterprise Linux 5 Client
- RedHat, Enterprise Linux 5
- Sun, Solaris 10 SPARC
- Sun, Solaris 10 x86
- Sun, Solaris 9 x86
- Sun, Solaris 9 SPARC
- Sun, StarOffice 8.0
- Sun, StarSuite 8.0
- SuSE, SLE SDK 10
Remedy:
Refer to the SourceForge.net: Archive for patch, upgrade or suggested workaround information. See References.
For Open Office:
Upgrade to the latest version of Open Office (2.4 or later), available from the Open Office Web site. See References.
For other distributions:
Apply the appropriate update for your system. See References.
Consequences:
Denial of Service
References:
- OpenOffice.org Security Bulletin CVE-2007-4770/4771, Manipulated ODF text documents containing XForms can lead to heap overflows and arbitrary code execution at http://www.openoffice.org/security/cves/CVE-2007-4770.html.
- OpenOffice.org Web site, download: OpenOffice.org Downloads at http://download.openoffice.org/.
- Red Hat Bugzilla Bug 429023, CVE-2007-4770 libicu poor back reference validation at https://bugzilla.redhat.com/show_bug.cgi?id=429023.
- SourceForge.net: Archive, [icu-support] ICU Patch for bugs in Regular Expressions at http://sourceforge.net/mailarchive/message.php?msg_name=d03a2ffb0801221538x68825e42xb4a4aaf0fcccecbd%40mail.gmail.com.
- Sun Alert ID: 231641, Security Vulnerability for ODF Text Documents Containing XForms in StarOffice 8/StarSuite 8 at http://sunsolve.sun.com/search/document.do?assetkey=1-66-231641-1.
- Sun Alert ID: 233922, Multiple Security Vulnerabilities in ICU 3.2 Library Regular Expression Processing May Cause a Denial of Service (DoS) at http://sunsolve.sun.com/search/document.do?assetkey=1-66-233922-1.
- ASA-2008-128: Multiple Security Vulnerabilities in ICU 3.2 Library Regular Expression Processing May Cause a Denial of Service (DoS) (Sun 233922)
- BID-27455: International Components for Unicode Library (libicu) Multiple Memory Corruption Vulnerabilities
- CVE-2007-4770: libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero (aka \0), which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames.
- DSA-1511: libicu -- various
- GLSA-200803-20: International Components for Unicode: Multiple vulnerabilities
- MDVSA-2008:026: Updated icu packages fix vulnerabilities
- RHSA-2008-0090: Important: icu security update
- SA28575: International Components for Unicode Regular Expressions Vulnerabilities
- SA29291: Sun Solaris ICU Regular Expressions Vulnerabilities
- SA29852: OpenOffice Multiple Vulnerabilities
- SA29987: Sun StarOffice/StarSuite Multiple Vulnerabilities
- SECTRACK ID: 1019269: ICU Regular Expression Processing Bug May Let Users Execute Arbitrary Code
- SUSE-SA:2008:023: OpenOffice.org security problems
- SUSE-SR:2008:005: SUSE Security Summary Report
- USN-591-1: libicu vulnerabilities
- VUPEN/ADV-2008-0282: International Components for Unicode Regular Expressions Vulnerabilities
- VUPEN/ADV-2008-0807: Sun Solaris ICU Library Regular Expression Denial of Service Issues
- VUPEN/ADV-2008-1253: OpenOffice.org Data Processing Multiple Code Execution Vulnerabilities
- VUPEN/ADV-2008-1375: Sun StarOffice/StarSuite File Handling Code Execution Vulnerabilities
Reported:
Jan 22, 2008
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