1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200807-03 / libpcre glib |
| Release Date | July 07, 2008 |
| Latest Revision | July 07, 2008: 01 |
| Impact | high |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| dev-libs/libpcre | < 7.7-r1 | >= 7.7-r1 | All supported architectures |
| dev-libs/glib | < 2.16.3-r1 | >= 2.16.3-r1, < 2.14.0 | All supported architectures |
Related bugreports: #228091, #230039
A buffer overflow vulnerability has been discovered in PCRE, allowing for the execution of arbitrary code and a Denial of Service.
PCRE is a Perl-compatible regular expression library. GLib includes a copy of PCRE.
Tavis Ormandy of the Google Security team reported a heap-based buffer overflow when compiling regular expression patterns containing "Internal Option Settings" such as "(?i)".
A remote attacker could exploit this vulnerability by sending a specially crafted regular expression to an application making use of the PCRE library, which could possibly lead to the execution of arbitrary code or a Denial of Service.
There is no known workaround at this time.
All PCRE users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libpcre-7.7-r1" |
All GLib users should upgrade to the latest version:
Code Listing 3.2: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/glib-2.16.3-r1" |