CVE - CVE-2019-18683

CVE-ID
CVE-2019-18683	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
An issue was discovered in drivers/media/platform/vivid in the Linux kernel through 5.3.8. It is exploitable for privilege escalation on some Linux distributions where local users have /dev/video0 access, but only if the driver happens to be loaded. There are multiple race conditions during streaming stopping in this driver (part of the V4L2 subsystem). These issues are caused by wrong mutex locking in vivid_stop_generating_vid_cap(), vivid_stop_generating_vid_out(), sdr_cap_stop_streaming(), and the corresponding kthreads. At least one of these race conditions leads to a use-after-free.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20200109 [slackware-security] Slackware 14.2 kernel (SSA:2020-008-01) URL:https://seclists.org/bugtraq/2020/Jan/10 CONFIRM:https://security.netapp.com/advisory/ntap-20191205-0001/ MISC:http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html MISC:https://lore.kernel.org/lkml/20191103221719.27118-1-alex.popov@linux.com/ MISC:https://www.openwall.com/lists/oss-security/2019/11/02/1 MLIST:[debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update URL:https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html MLIST:[oss-security] 20191105 Re: [ Linux kernel ] Exploitable bugs in drivers/media/platform/vivid URL:http://www.openwall.com/lists/oss-security/2019/11/05/1 SUSE:openSUSE-SU-2019:2675 URL:http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html UBUNTU:USN-4254-1 URL:https://usn.ubuntu.com/4254-1/ UBUNTU:USN-4254-2 URL:https://usn.ubuntu.com/4254-2/ UBUNTU:USN-4258-1 URL:https://usn.ubuntu.com/4258-1/ UBUNTU:USN-4284-1 URL:https://usn.ubuntu.com/4284-1/ UBUNTU:USN-4287-1 URL:https://usn.ubuntu.com/4287-1/ UBUNTU:USN-4287-2 URL:https://usn.ubuntu.com/4287-2/
Assigning CNA
MITRE Corporation
Date Record Created
20191104	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20191104)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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