CVE-2009-3305 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can crash the Polipo proxy server by sending a malformed Cache-Control header, causing a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2009-3305?

CVE-2009-3305 is a medium-severity denial of service vulnerability in n/a, published on 24 Dec 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Polipo 1.0.4, and possibly other versions, allows remote attackers to cause a denial of service (crash) via a request with a Cache-Control header that lacks a value for the max-age field, which triggers a segmentation fault in the httpParseHeaders function in http_parse.c, and possibly other unspecified vectors.

Weakness: CWE-20

Which versions are affected by CVE-2009-3305?

It affects 1 product.

Products include Pps.jussieu Polipo.

How do I fix CVE-2009-3305?

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-2009-3305 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-3305 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-v2mm-g69c-c43h.

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