pcre -- heap overflow vulnerability

2016-02-27T00:00:00
ID 497B82E0-F9A0-11E5-92CE-002590263BF5
Type freebsd
Reporter FreeBSD
Modified 2016-02-27T00:00:00

Description

Mitre reports:

The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+\"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'){97)?J)?J)(?'R'(?'R'){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with named subgroups, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.