A buffer overflow vulnerability has been discovered in PCRE, allowing for the execution of arbitrary code and a Denial of Service.
|Package||dev-libs/libpcre on all architectures|
|Affected versions||< 7.7-r1|
|Unaffected versions||>= 7.7-r1|
|Package||dev-libs/glib on all architectures|
|Affected versions||< 2.16.3-r1|
|Unaffected versions||>= 2.16.3-r1
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:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libpcre-7.7-r1"
All GLib users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/glib-2.16.3-r1"