CVE-2007-4771

NameCVE-2007-4771
DescriptionHeap-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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1511-1
NVD severityhigh
Debian Bugs463688

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
icu (PTS)stretch (security), stretch57.1-6+deb9u4fixed
buster, buster (security)63.1-6+deb10u1fixed
bullseye, sid67.1-4fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
icusourceetch3.6-2etch1DSA-1511-1
icusource(unstable)3.8-6463688

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