CVE-2015-8386: Buffer Overflow
It was discovered that PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns could provoke a buffer overflow, allowing remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression.
Other sources
PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
— MITRE
Upgraded bundled PCRE library to 8.38. (CVE-2015-8383, CVE-2015-8386, CVE-2015-8387, CVE-2015-8389, CVE-2015-8390, CVE-2015-8391, CVE-2015-8393, CVE-2015-8394)
— PHP
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2015-8386?
CVE-2015-8386 has a severity rating that can lead to denial of service due to a buffer overflow caused by crafted regular expressions.
How do I fix CVE-2015-8386?
To fix CVE-2015-8386, ensure that your PCRE library is updated to version 8.38 or later.
Which versions of software are affected by CVE-2015-8386?
CVE-2015-8386 affects PCRE versions prior to 8.38, as well as certain versions of PHP and specific Linux distributions like Fedora 22 and Oracle Linux 7.
Can CVE-2015-8386 be exploited through web applications?
Yes, CVE-2015-8386 can be exploited by remote attackers using crafted regular expressions through web applications, resulting in denial of service.
What are the potential impacts of CVE-2015-8386?
The potential impacts of CVE-2015-8386 include denial of service through buffer overflow and possibly other unspecified consequences.