Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.2.85 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cPatchVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2574.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/03/2Mailing ListPatch
- http://www.securityfocus.com/bid/94654Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1401494Issue Tracking
- https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebcPatchVendor Advisory
- https://patchwork.kernel.org/patch/8752621/Issue Tracking
- https://source.android.com/security/bulletin/2017-05-01Third Party Advisory
FAQ
What is CVE-2016-9794?
CVE-2016-9794 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 p...
How severe is CVE-2016-9794?
CVE-2016-9794 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9794?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.