CVE-2018-14659 Denial of service in glusterfs

What is CVE-2018-14659?

CVE-2018-14659 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 31 Oct 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack via use of the 'GF_XATTR_IOSTATS_DUMP_KEY' xattr. A remote, authenticated attacker could exploit this by mounting a Gluster volume and repeatedly calling 'setxattr(2)' to trigger a state dump and create an arbitrary number of files in the server's runtime directory.

Weakness: CWE-400

Which versions are affected by CVE-2018-14659?

It affects 5 products.

Products include Debian Debian Linux, Redhat Enterprise Linux Server, Redhat Gluster File System, Redhat Virtualization, Redhat Virtualization Host.

How do I fix CVE-2018-14659?

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-2018-14659 being exploited?

There is no known exploitation of CVE-2018-14659 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2018-14659, GHSA-75jx-33j6-76c5, UBUNTU-CVE-2018-14659.