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Vulnerability Details : 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.
Publish Date : 2008-01-28 Last Update Date : 2018-10-15
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Memory corruption
CWE ID 399

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important 2008-01-16 2008-01-22
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-4770 unix
DSA-1511 libicu -- various oval:org.mitre.oval:def:8243 unix
DSA-1511-1 icu - multiple problems oval:org.mitre.oval:def:18778 unix
ELSA-2008:0090: icu security update (Important) oval:org.mitre.oval:def:21714 unix
libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexis... oval:org.mitre.oval:def:11172 unix
Multiple Security Vulnerabilities in ICU 3.2 Library Regular Expression Processing May Cause a Denial of Service (DoS) oval:org.mitre.oval:def:5507 unix
RHSA-2008:0090: icu security update (Important) oval:com.redhat.rhsa:def:20080090 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-4770

# Product Type Vendor Product Version Update Edition Language
1 Application Icu-project International Components For Unicode 3.8.1 ~~~c/c++~~ Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Icu-project International Components For Unicode 1

- References For CVE-2007-4770
BID 27455 International Components for Unicode Library (libicu) Multiple Memory Corruption Vulnerabilities Release Date:2008-05-30
XF libicu-restackframes-dos(39938) CONFIRM
VUPEN ADV-2008-0807
BUGTRAQ 20080206 rPSA-2008-0043-1 icu
SECTRACK 1019269
MLIST [icu-support] 20080122 ICU Patch for bugs in Regular Expressions
GENTOO GLSA-200805-16
GENTOO GLSA-200803-20
REDHAT RHSA-2008:0090
SUSE SUSE-SR:2008:005

- Metasploit Modules Related To CVE-2007-4770

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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