CVE-2013-4123 Denial of service in n/a
Remote attackers can cause a denial of service in Squid proxy servers by sending a crafted port number in the HTTP Host header.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4123?
CVE-2013-4123 is a medium-severity denial of service vulnerability in Opensuse Opensuse, published on 16 Sep 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
client_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause a denial of service via a crafted port number in a HTTP Host header.
Weakness: CWE-20
Which versions are affected by CVE-2013-4123?
It affects 2 products.
Products include Opensuse Opensuse, Squid-Cache Squid.
How do I fix CVE-2013-4123?
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-2013-4123 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2013-4123 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Opensuse Opensuse
Sources
Also known as GHSA-gpv8-rwm7-v9hg.