Medium severity · published May 23, 2016
CVE-2016-4578
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…
5.5
CVSS
1.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 4.6 · source: NVD
DL
Debian Linux · Debian
8.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.4; 7.6 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.3; 7.4; 7.5; 7.6 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.3; 7.6 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
LE
Leap · Opensuse
42.1 · source: NVD
OP
Opensuse · Opensuse
13.1 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10; 16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4578
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4578
Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6
Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4ec8cc8039a7063e24204299b462bd1383184a5
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
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