CVE-2006-7226 Denial of service in n/a
Attackers can cause a denial of service in applications using the PCRE library by providing specially crafted regular expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2006-7226?
CVE-2006-7226 is a medium-severity denial of service vulnerability in Redhat Enterprise Linux, published on 3 Dec 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Perl-Compatible Regular Expression (PCRE) library before 6.7 does not properly calculate the compiled memory allocation for regular expressions that involve a quantified "subpattern containing a named recursion or subroutine reference," which allows context-dependent attackers to cause a denial of service (error or crash).
Which versions are affected by CVE-2006-7226?
It affects 2 products.
Products include Redhat Enterprise Linux, Redhat Enterprise Linux Desktop.
How do I fix CVE-2006-7226?
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-2006-7226 being exploited?
There is no known exploitation of CVE-2006-7226 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
- CVE-2018-14667 Red Hat JBoss RichFaces Framework Expression Language Injection
- CVE-2021-20325 Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit
- CVE-2018-25011 Memory corruption in libwebp
- CVE-2018-25014 Other in libwebp
- CVE-2014-3585 Supply chain in redhat-upgrade-tool
Sources
Also known as DEBIAN-CVE-2006-7226, GHSA-pjwm-g353-8cr7.