CVE-2007-4771

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.

Category

9.3
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 2.33% Top 20%
Vendor Advisory sun.com Vendor Advisory novell.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory mandriva.com Vendor Advisory sun.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/39936 vdb entry third party advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-233922-1 vendor advisory broken link
http://secunia.com/advisories/28615 third party advisory permissions required
http://secunia.com/advisories/29852 third party advisory permissions required
http://secunia.com/advisories/28783 third party advisory permissions required
http://secunia.com/advisories/29291 third party advisory permissions required
http://www.novell.com/linux/security/advisories/2008_23_openoffice.html third party advisory vendor advisory
http://secunia.com/advisories/29242 third party advisory permissions required
https://bugzilla.redhat.com/show_bug.cgi?id=429025 issue tracking third party advisory
http://securitytracker.com/id?1019269 vdb entry third party advisory
http://security.gentoo.org/glsa/glsa-200805-16.xml third party advisory vendor advisory
http://secunia.com/advisories/29987 third party advisory permissions required
http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html third party advisory vendor advisory
http://www.securityfocus.com/bid/27455 vdb entry third party advisory patch
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10507 vdb entry third party advisory signature
http://secunia.com/advisories/29294 third party advisory permissions required
http://www.openoffice.org/security/cves/CVE-2007-4770.html third party advisory
http://security.gentoo.org/glsa/glsa-200803-20.xml third party advisory vendor advisory
http://www.debian.org/security/2008/dsa-1511 third party advisory vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5431 vdb entry third party advisory signature
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0043 third party advisory
http://rhn.redhat.com/errata/RHSA-2008-0090.html third party advisory vendor advisory
http://secunia.com/advisories/29333 third party advisory permissions required
https://issues.rpath.com/browse/RPL-2199 third party advisory
http://www.ubuntu.com/usn/usn-591-1 third party advisory vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2008:026 vendor advisory broken link
http://sunsolve.sun.com/search/document.do?assetkey=1-26-231641-1 vendor advisory broken link
http://www.vupen.com/english/advisories/2008/1375/references vdb entry third party advisory
http://secunia.com/advisories/29194 third party advisory permissions required
http://secunia.com/advisories/30179 third party advisory permissions required
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00921.html third party advisory vendor advisory
http://www.openoffice.org/security/cves/CVE-2007-5745.html third party advisory
http://secunia.com/advisories/28575 third party advisory permissions required
http://www.securityfocus.com/archive/1/487677/100/0/threaded mailing list
http://sourceforge.net/mailarchive/message.php?msg_name=d03a2ffb0801221538x68825e42xb4a4aaf0fcccecbd%40mail.gmail.com third party advisory mailing list
http://secunia.com/advisories/28669 third party advisory permissions required
http://www.vupen.com/english/advisories/2008/0807/references vdb entry third party advisory
http://secunia.com/advisories/29910 third party advisory permissions required
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00896.html third party advisory vendor advisory
http://www.vupen.com/english/advisories/2008/0282 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2007-4771?
CVE-2007-4771 has been scored as a critical severity vulnerability.
How to fix CVE-2007-4771?
To fix CVE-2007-4771, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2007-4771 being actively exploited in the wild?
It is possible that CVE-2007-4771 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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