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Mend.io Vulnerability Database

CVE-2016-9794

Date: December 28, 2016

Race condition in the snd_pcm_period_elapsed function in sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel before 4.7 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START command.

Language: C

Severity Score

7.8

Related Resources (19)

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1401494

Url: https://access.redhat.com/security/cve/CVE-2016-9794

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2016-9794

Url: http://www.securityfocus.com/bid/94654

Url: https://patchwork.kernel.org/patch/8752621/

Url: http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2016-9794

Url: http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html

Url: http://www.openwall.com/lists/oss-security/2016/12/03/2

Url: http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html

Url: https://source.android.com/security/bulletin/2017-05-01

Url: http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html

Url: http://rhn.redhat.com/errata/RHSA-2016-2574.html

Url: https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4

Url: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4

Url: https://www.mend.io/vulnerability-database/CVE-2016-9794

Severity Score

7.8

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Use After Free

CWE-416

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.2
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

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CVE-2016-9794

Date: December 28, 2016

Language: C

Severity Score

Related Resources (19)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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