CVE-2018-14660 Denial of service in glusterfs

What is CVE-2018-14660?

CVE-2018-14660 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 1 Nov 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw was found in glusterfs server through versions 4.1.4 and 3.1.2 which allowed repeated usage of GF_META_LOCK_KEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node.

Weakness: CWE-770, CWE-400

Which versions are affected by CVE-2018-14660?

It affects 5 products.

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

How do I fix CVE-2018-14660?

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-2018-14660 being exploited?

There is no known exploitation of CVE-2018-14660 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-2018-14660, GHSA-p6w5-mv25-26mv, UBUNTU-CVE-2018-14660.