GLSA-200711-28 : Perl: Buffer overflow
High Nessus Plugin ID 28267
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200711-28 (Perl: Buffer overflow)
Tavis Ormandy and Will Drewry (Google Security Team) discovered a heap-based buffer overflow in the Regular Expression engine (regcomp.c) that occurs when switching from byte to Unicode (UTF-8) characters in a regular expression.
A remote attacker could either entice a user to compile a specially crafted regular expression or actively compile it in case the script accepts remote input of regular expressions, possibly leading to the execution of arbitrary code with the privileges of the user running Perl.
There is no known workaround at this time.
SolutionAll Perl users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-lang/perl-5.8.8-r4'