CVE-2019-18683
- State
- Published
- Severity
- Not scored
- Published
- Nov 4, 2019
- Updated
- Aug 5, 2024
- Reserved
- Nov 4, 2019
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://www.openwall.com/lists/oss-security/2019/11/02/1
- https://lore.kernel.org/lkml/20191103221719.27118-1-alex.popov%40linux.com/
- [oss-security] 20191105 Re: [ Linux kernel ] Exploitable bugs in drivers/media/platform/vividmailing-list
- https://security.netapp.com/advisory/ntap-20191205-0001/
- openSUSE-SU-2019:2675vendor-advisory
- 20200109 [slackware-security] Slackware 14.2 kernel (SSA:2020-008-01)mailing-list
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- USN-4254-1vendor-advisory
- USN-4254-2vendor-advisory
- USN-4258-1vendor-advisory
- USN-4287-1vendor-advisory
- USN-4287-2vendor-advisory
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security updatemailing-list
- USN-4284-1vendor-advisory
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