GLSA-200803-20 : International Components for Unicode: Multiple vulnerabilities
High Nessus Plugin ID 31446
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200803-20 (International Components for Unicode: Multiple vulnerabilities)
Will Drewry (Google Security) reported a vulnerability in the regular expression engine when using back references to capture \\0 characters (CVE-2007-4770). He also found that the backtracking stack size is not limited, possibly allowing for a heap-based buffer overflow (CVE-2007-4771).
A remote attacker could submit specially crafted regular expressions to an application using the library, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application or a Denial of Service.
There is no known workaround at this time.
SolutionAll International Components for Unicode users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/icu-3.8.1-r1'