CVE-2015-8391 Denial of service in n/a

What is CVE-2015-8391?

CVE-2015-8391 is a critical denial of service vulnerability in Fedoraproject Fedora, published on 2 Dec 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

Weakness: CWE-119

Which versions are affected by CVE-2015-8391?

It affects 10 products.

Products include Fedoraproject Fedora, Oracle Linux, Pcre Pcre, Php Php, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus and 4 more.

How do I fix CVE-2015-8391?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2015-8391 being exploited?

There is no known exploitation of CVE-2015-8391 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2015-8391, GHSA-86ch-fq45-3c2j, UBUNTU-CVE-2015-8391.