CVE-2009-0478 Denial of service in n/a
Remote attackers can cause a denial of service in Squid proxy servers by sending HTTP requests with invalid version numbers, triggering assertion failures.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-0478?
CVE-2009-0478 is a medium-severity denial of service vulnerability in n/a, published on 8 Feb 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Squid 2.7 to 2.7.STABLE5, 3.0 to 3.0.STABLE12, and 3.1 to 3.1.0.4 allows remote attackers to cause a denial of service via an HTTP request with an invalid version number, which triggers a reachable assertion in (1) HttpMsg.c and (2) HttpStatusLine.c.
Weakness: CWE-20
Which versions are affected by CVE-2009-0478?
It affects 1 product.
Products include Squid Squid.
How do I fix CVE-2009-0478?
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-2009-0478 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0478 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2009-0478, DSA-1732-1, GHSA-cfw6-qxff-576v.