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CVE-2007-4771

9.3 · HIGH

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…

Published Jan 29, 2008icu-projectCWE-399EPSS 2.54%

Overview

CVE-2007-4771 is a high-severity vulnerability affecting icu-project international_components_for_unicode. It was published on January 29, 2008 and has a CVSS 2.0 base score of 9.3 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from icu-project. Update international_components_for_unicode to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
icu-projectinternational_components_for_unicode0Affected

References

Reflists.opensuse.org/opensuse-security-announce/2008-03/msg00001.htmlRefrhn.redhat.com/errata/RHSA-2008-0090.htmlRefsecunia.com/advisories/28575Refsecunia.com/advisories/28615Refsecunia.com/advisories/28669Refsecunia.com/advisories/28783Refsecunia.com/advisories/29194Refsecunia.com/advisories/29242Refsecunia.com/advisories/29291Refsecunia.com/advisories/29294

How CyberStrike helps

Frequently asked questions

What is CVE-2007-4771?

CVE-2007-4771 is a high-severity vulnerability affecting icu-project international_components_for_unicode. It was published on January 29, 2008 and has a CVSS 2.0 base score of 9.3 (HIGH).

How severe is CVE-2007-4771?

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2007-4771?

Check the references section for vendor advisories and patches from icu-project. Update international_components_for_unicode to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2007-4771?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-4771 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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