CVE-2011-3184 Denial of service in n/a

Medium 4.3 Published Updated

Remote attackers can crash Pidgin by sending crafted HTTP 100 responses via the MSN protocol plugin, 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-2011-3184?

CVE-2011-3184 is a medium-severity denial of service vulnerability in Pidgin Pidgin, published on 29 Aug 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The msn_httpconn_parse_data function in httpconn.c in the MSN protocol plugin in libpurple in Pidgin before 2.10.0 does not properly handle HTTP 100 responses, which allows remote attackers to cause a denial of service (incorrect memory access and application crash) via vectors involving a crafted server message.

Weakness: CWE-399

Which versions are affected by CVE-2011-3184?

It affects 1 product.

Products include Pidgin Pidgin.

How do I fix CVE-2011-3184?

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-2011-3184 being exploited?

There is no known exploitation of CVE-2011-3184 in the wild and no public exploit code.

All Pidgin Pidgin vulnerabilities

Sources

Also known as DEBIAN-CVE-2011-3184, GHSA-4fh6-vrqh-wvpv.

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