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CVE-2019-18683

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.18 < 4.4.204
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.204
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.157
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.87
Linux ≫ Linux Kernel Version >= 4.20 < 5.3.14
Linux ≫ Linux Kernel Version >= 5.4 < 5.4.1
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 19.10
Opensuse ≫ Leap Version 15.1
Netapp ≫ Active Iq Unified Manager Version - SwPlatform vmware_vsphere
Netapp ≫ Cloud Backup Version -
Netapp ≫ E-series Santricity Os Controller Version >= 11.0.0 <= 11.70.1
Netapp ≫ Element Software Version -
Netapp ≫ Hci Management Node Version -
Netapp ≫ Solidfire Version -
Netapp ≫ A700s Firmware Version -
   Netapp ≫ A700s Version -
Netapp ≫ 8300 Firmware Version -
   Netapp ≫ 8300 Version -
Netapp ≫ 8700 Firmware Version -
   Netapp ≫ 8700 Version -
Netapp ≫ A400 Firmware Version -
   Netapp ≫ A400 Version -
Netapp ≫ H610s Firmware Version -
   Netapp ≫ H610s Version -
Debian ≫ Debian Linux Version 8.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.99% 0.589
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NIST 6.9 3.4 10
AV:L/AC:M/Au:N/C:C/I:C/A:C
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
Third Party Advisory
Mailing List
http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
Third Party Advisory
VDB Entry
https://seclists.org/bugtraq/2020/Jan/10
Patch
Third Party Advisory
Mailing List
https://usn.ubuntu.com/4258-1/
Third Party Advisory
https://usn.ubuntu.com/4284-1/
Third Party Advisory
https://usn.ubuntu.com/4287-1/
Third Party Advisory
https://usn.ubuntu.com/4287-2/
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
Third Party Advisory
Mailing List
https://usn.ubuntu.com/4254-1/
Third Party Advisory
https://usn.ubuntu.com/4254-2/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20191205-0001/
Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/11/05/1
Third Party Advisory
Exploit
Mailing List
https://lore.kernel.org/lkml/20191103221719.27118-1-alex.popov%40linux.com/
Vendor Advisory
https://www.openwall.com/lists/oss-security/2019/11/02/1
Third Party Advisory
Exploit
Mailing List