CVE-2015-2326 Denial of service in n/a
Attackers can cause a denial of service via out-of-bounds read in PCRE library when processing specific regular expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2015-2326?
CVE-2015-2326 is a medium-severity denial of service vulnerability in Mariadb Mariadb, published on 14 Jan 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The pcre_compile2 function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code and cause a denial of service (out-of-bounds read) via regular expression with a group containing both a forward referencing subroutine call and a recursive back reference, as demonstrated by "((?+1)(\1))/".
Weakness: CWE-125
Which versions are affected by CVE-2015-2326?
It affects 4 products.
Products include Mariadb Mariadb, Opensuse Opensuse, Pcre Pcre, Php Php.
How do I fix CVE-2015-2326?
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-2015-2326 being exploited?
There is no known exploitation of CVE-2015-2326 in the wild and no public exploit code.
Other vulnerabilities in Mariadb Mariadb
- CVE-2026-49261 MariaDB server has unsafe parameter handling in `wsrep_notify_cmd`
- CVE-2026-85746 MariaDB: Out-of-bound buffer write on in `ST_AsText` of nested GeometryCollections
- CVE-2026-85748 MariaDB: Use-after-free with a large number of SYS_REFCURSOR's
- CVE-2026-92262 MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
- CVE-2023-26785 Code injection in n/a
Sources
Also known as DEBIAN-CVE-2015-2326, GHSA-m793-2mj8-wj8q, UBUNTU-CVE-2015-2326.