CVE-2015-6815 Denial of service in QEMU

What is CVE-2015-6815?

CVE-2015-6815 is a low-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 31 Jan 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The process_tx_desc function in hw/net/e1000.c in QEMU before 2.4.0.1 does not properly process transmit descriptor data when sending a network packet, which allows attackers to cause a denial of service (infinite loop and guest crash) via unspecified vectors.

Weakness: CWE-835

Which versions are affected by CVE-2015-6815?

It affects 11 products.

Products include Arista Eos, Canonical Ubuntu Linux, Fedoraproject Fedora, Novell Suse Linux Enterprise Debuginfo, Novell Suse Linux Enterprise Desktop, Novell Suse Linux Enterprise Server and 5 more.

How do I fix CVE-2015-6815?

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-2015-6815 being exploited?

There is no known exploitation of CVE-2015-6815 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2026-7473 Arista Extensible Operating System Incomplete Comparison with Missing Factors Exploited Medium 6.9
• CVE-2015-8236 Privilege escalation in n/a Critical 10.0
• CVE-2020-10188 Memory corruption in n/a Critical 9.8
• CVE-2017-18017 Use after free in n/a Critical 9.8
• CVE-2017-14491 Memory corruption in n/a Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2015-6815, GHSA-m4j6-cfvh-8j5q, UBUNTU-CVE-2015-6815.