Buffer Overflow Vulnerability in PCRE Products Affecting Multiple Versions
CVE-2016-3191

9.8CRITICAL

Key Information:

Vendor

Pcre

Status
Pcre
Pcre2
Vendor
CVE Published:
17 March 2016

What is CVE-2016-3191?

The vulnerability arises from improper handling of regular expression patterns containing the (*ACCEPT) substring when nested parentheses are involved in PCRE versions prior to 8.39 and PCRE2 versions prior to 10.22. This flaw can be exploited by remote attackers to execute arbitrary code or create a denial of service condition through specially crafted regular expressions. This vulnerability has been recognized in various applications, particularly when dealing with JavaScript RegExp objects within browsers like Konqueror, highlighting its potential impact across different platforms.

References

http://www.securityfocus.com/bid/84810
vdb-entryx_refsource_BID
http://vcs.pcre.org/pcre2?view=revision&revision=489
x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2016:1132
vendor-advisoryx_refsource_REDHAT

EPSS Score

8% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.