Denial of Service Vulnerability in PCRE by Vendor
CVE-2015-8391

9.8CRITICAL

Key Information:

Vendor

Pcre

Status
Pcre
Vendor
CVE Published:
2 December 2015

What is CVE-2015-8391?

The PCRE library includes a vulnerability in the pcre_compile function found in pcre_compile.c, where specific nested constructs are improperly handled. This design flaw can potentially be exploited by remote attackers to deplete CPU resources, resulting in a denial of service. The issue can be triggered through specially crafted regular expressions, as highlighted by instances observed in a JavaScript RegExp object in the Konqueror browser.

References

http://www.openwall.com/lists/oss-security/2015/11/29/1
mailing-list
https://access.redhat.com/errata/RHSA-2016:1132
vendor-advisory
http://www.securityfocus.com/bid/82990
vdb-entry

EPSS Score

6% 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

.