CVE-2016-2391 Null dereference in n/a

What is CVE-2016-2391?

CVE-2016-2391 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 16 Jun 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

The ohci_bus_start function in the USB OHCI emulation support (hw/usb/hcd-ohci.c) in QEMU allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors related to multiple eof_timers.

Weakness: CWE-476

Which versions are affected by CVE-2016-2391?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2016-2391?

Apply the vendor's patch.

Is CVE-2016-2391 being exploited?

There is no known exploitation of CVE-2016-2391 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-2016-2391, GHSA-g442-4wgf-h9jr, UBUNTU-CVE-2016-2391.