cve/2016/CVE-2016-1283.md

CVE-2016-1283

Description

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.

POC

Reference

• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
• https://www.tenable.com/security/tns-2017-14

Github

• https://github.com/sjourdan/clair-lab