pcre_jit_compile.c in PCRE 8.35 does not properly use table jumps to optimize nested alternatives, which allows remote attackers to cause a denial of service (stack memory corruption) or possibly have unspecified other impact via a crafted string, as demonstrated by packets encountered by Suricata during use of a regular expression in an Emerging Threats Open ruleset.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9769
Reference (s):
- BID:85570
- URL: http://www.securityfocus.com/bid/85570
- http://vcs.pcre.org/pcre?view=revision&revision=1475
- https://bugs.debian.org/819050
- https://redmine.openinfosecfoundation.org/issues/1693