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2003: 2,700 advisories published
2004: 3,100 advisories published
2005: 4,600 advisories published
2006: 5,300 advisories published

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TITLE:
Perl Regular Expressions Unicode Data Buffer Overflow

SECUNIA ADVISORY ID:
SA27546

VERIFY ADVISORY:
http://secunia.com/advisories/27546/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Perl 5.x
http://secunia.com/product/2647/

DESCRIPTION:
Tavis Ormandy and Will Drewry have reported a vulnerability in Perl,
which potentially can be exploited by malicious people to compromise
a vulnerable system.

The vulnerability is caused due to a boundary error within the
processing of regular expressions containing Unicode data. This can
be exploited to cause a buffer overflow via a specially crafted
regular expression causing a runtime switch to the Unicode character
scheme.

The vulnerability is reported in version 5.8.8. Other versions may
also be affected.

SOLUTION:
Fixed in development version 5.9.5.

PROVIDED AND/OR DISCOVERED BY:
Red Hat credits Tavis Ormandy and Will Drewry, Google Security Team

ORIGINAL ADVISORY:
https://bugzilla.redhat.com/show_bug.cgi?id=323571

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