International Components for Unicode: Multiple vulnerabilities
1.
Gentoo Linux Security Advisory
Version Information
| Advisory Reference |
GLSA 200803-20 / icu |
| Release Date |
March 11, 2008 |
| Latest Revision |
May 28, 2009: 03 |
| Impact |
high |
| Exploitable |
remote |
| Package |
Vulnerable versions |
Unaffected versions |
Architecture(s) |
| dev-libs/icu |
<
3.8.1-r1 |
>=
3.8.1-r1,
revision >=
3.6-r2 |
All supported architectures
|
Related bugreports:
#208001
Synopsis
Two vulnerabilities have been discovered in the International Components
for Unicode, possibly resulting in the remote execution of arbitrary code
or a Denial of Service.
2.
Impact Information
Background
International Components for Unicode is a set of C/C++ and Java
libraries providing Unicode and Globalization support for software
applications.
Description
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).
Impact
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.
3.
Resolution Information
Workaround
There is no known workaround at this time.
Resolution
All International Components for Unicode users should upgrade to the
latest version:
Code Listing 3.1: Resolution |
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/icu-3.8.1-r1"
|
4.
References
|