CVE-2007-4770

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-01-29 · updated 2026-06-16
Weakness: CWE-399

Description

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.

Affected products

Icu-Project International Components For Unicode: through 3.8.1

References

http://lists.opensuse.org/opensuse-security-announce/2008-03/msg00001.html
http://rhn.redhat.com/errata/RHSA-2008-0090.html
http://secunia.com/advisories/28575
http://secunia.com/advisories/28615
http://secunia.com/advisories/28669
http://secunia.com/advisories/28783
http://secunia.com/advisories/29194
http://secunia.com/advisories/29242
http://secunia.com/advisories/29291
http://secunia.com/advisories/29294
http://secunia.com/advisories/29333
http://secunia.com/advisories/29852

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