critical
9.8
CWE
119
Advisory Published
Updated

CVE-2015-8386: Buffer Overflow

First published: Wed Dec 02 2015(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/pcre<8.38
8.38
PHP<7.0.3
7.0.3
PCRE (Perl Compatible Regular Expressions)<=8.37
Fedora=22
Oracle Linux=7
PHP>=5.5.0<5.5.32
PHP>=5.6.0<5.6.18
PHP>=7.0.0<7.0.3

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

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.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203