#VU87890 Buffer overflow in PCRE
Vulnerability identifier: #VU87890
Vulnerability risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
PCRE
Universal components / Libraries /
Libraries used by multiple products
Vendor:
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to PCRE mishandles the /(((a2)|(a*)g<-1>))*/ pattern and related patterns with certain internal recursive back references. A remote attacker can cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
http://www.fortiguard.com/advisory/FG-VD-15-010/
http://www.openwall.com/lists/oss-security/2015/11/29/1
http://www.securityfocus.com/bid/74924
http://bugs.exim.org/show_bug.cgi?id=1503
http://jira.mongodb.org/browse/SERVER-17252
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
