CVE-2015-8552 Denial of service in n/a

What is CVE-2015-8552?

CVE-2015-8552 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 13 Apr 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."

Weakness: CWE-20

Which versions are affected by CVE-2015-8552?

It affects 5 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Novell Suse Linux Enterprise Debuginfo, Novell Suse Linux Enterprise Real Time Extension, Xen Xen.

How do I fix CVE-2015-8552?

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-2015-8552 being exploited?

There is no known exploitation of CVE-2015-8552 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 DEBIAN-CVE-2015-8552, GHSA-5rmx-m9vr-559r, UBUNTU-CVE-2015-8552.