CVE-2016-4578 Information disclosure in n/a

What is CVE-2016-4578?

CVE-2016-4578 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 23 May 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions.

Weakness: CWE-200

Which versions are affected by CVE-2016-4578?

It affects 11 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Opensuse Leap, Opensuse Opensuse, Redhat Enterprise Linux Desktop and 5 more.

How do I fix CVE-2016-4578?

Apply the vendor's patch.

Is CVE-2016-4578 being exploited?

There is no known exploitation of CVE-2016-4578 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

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-2016-4578, GHSA-mrgv-56mw-m87g, UBUNTU-CVE-2016-4578.