libicu doInterval buffer overflow
| libicu-dointerval-bo (39936) |  High Risk |
Description:
libicu (International Components for Unicode library) is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the doInterval function. By sending a specially-crafted regular expression to the backtracking stack, a local attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause linked applications to crash.
*CVSS:
| Base Score: | 4.6 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 3.4 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
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.
References:
- OpenOffice.org Security Bulletin CVE-2007-4770/4771: Manipulated ODF text documents containing XForms can lead to heap overflows and arbitrary code execution.
- OpenOffice.org Web site: download: OpenOffice.org Downloads.
- Red Hat Bugzilla Bug 429025: CVE-2007-4771 libicu incomplete interval handling.
- SourceForge.net: Archive: [icu-support] ICU Patch for bugs in Regular Expressions.
- Sun Alert ID: 231641: Security Vulnerability for ODF Text Documents Containing XForms in StarOffice 8/StarSuite 8.
- Sun Alert ID: 233922: Multiple Security Vulnerabilities in ICU 3.2 Library Regular Expression Processing May Cause a Denial of Service (DoS).
- 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-2007-4771: Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information.
- 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
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
- 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 x86
- Sun Solaris 10 SPARC
- Sun Solaris 9 SPARC
- Sun Solaris 9 x86
- Sun StarOffice 8.0
- Sun StarSuite 8.0
Reported:
Jan 22, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.