CVE-2012-0879 Denial of service in n/a

What is CVE-2012-0879?

CVE-2012-0879 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 May 2012. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context.

Weakness: CWE-400

Which versions are affected by CVE-2012-0879?

It affects 6 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Suse Linux Enterprise Desktop, Suse Linux Enterprise High Availability Extension, Suse Linux Enterprise Server.

How do I fix CVE-2012-0879?

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-2012-0879 being exploited?

There is no known exploitation of CVE-2012-0879 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7qf4-c29g-g9jg.