CVE-2014-3673 Denial of service in n/a

High 7.5 Published Updated

Remote attackers can crash the Linux kernel via malformed SCTP ASCONF chunks, requiring kernel patches to prevent system downtime.

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

What is CVE-2014-3673?

CVE-2014-3673 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 10 Nov 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The SCTP implementation in the Linux kernel through 3.17.2 allows remote attackers to cause a denial of service (system crash) via a malformed ASCONF chunk, related to net/sctp/sm_make_chunk.c and net/sctp/sm_statefuns.c.

Weakness: CWE-20

Which versions are affected by CVE-2014-3673?

It affects 10 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Opensuse Evergreen, Oracle Linux, Redhat Enterprise Linux and 4 more.

How do I fix CVE-2014-3673?

Apply the vendor's patch.

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-2014-3673 being exploited?

There is no known exploitation of CVE-2014-3673 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-3673, GHSA-g35v-9m6f-v2fq, UBUNTU-CVE-2014-3673.

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