PublicDateAtUSN: 2019-11-04 16:15:00 UTC
Candidate: CVE-2019-18683
PublicDate: 2019-11-04 16:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18683
 https://www.openwall.com/lists/oss-security/2019/11/02/1
 https://lore.kernel.org/lkml/20191103221719.27118-1-alex.popov@linux.com/
 https://ubuntu.com/security/notices/USN-4254-1
 https://ubuntu.com/security/notices/USN-4254-2
 https://ubuntu.com/security/notices/USN-4258-1
 https://ubuntu.com/security/notices/USN-4284-1
 https://ubuntu.com/security/notices/USN-4287-1
 https://ubuntu.com/security/notices/USN-4287-2
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.
Ubuntu-Description:
 It was discovered that a race condition existed in the Virtual Video Test
 Driver in the Linux kernel. An attacker with write access to /dev/video0 on
 a system with the vivid module loaded could possibly use this to gain
 administrative privileges.
Notes:
 tyhicks> This rarely used driver module cannot be loaded by an unprivileged
  user so the impact is lessened
Mitigation:
Bugs:
Priority: low
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H [7.0 HIGH]

Patches_linux:
 break-fix: 3f682ffcf957b556a7868decd5593d765ed3455d 6dcd5d7a7a29c1e4b8016a06aed78cd650cd8c27
 break-fix: 6de8653f410c5413a557eb48e2492a93f7af664b 6dcd5d7a7a29c1e4b8016a06aed78cd650cd8c27
upstream_linux: released (5.5~rc1)
precise/esm_linux: ignored (was needs-triage ESM criteria)
trusty_linux: ignored (out of standard support)
trusty/esm_linux: ignored (was needs-triage ESM criteria)
xenial_linux: released (4.4.0-173.203)
esm-infra/xenial_linux: released (4.4.0-173.203)
bionic_linux: released (4.15.0-88.88)
disco_linux: pending (5.0.0-40.44)
eoan_linux: released (5.3.0-40.32)
focal_linux: not-affected (5.4.0-9.12)
devel_linux: not-affected (5.4.0-26.30)

Patches_linux-hwe:
upstream_linux-hwe: released (5.5~rc1)
precise/esm_linux-hwe: DNE
trusty_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
xenial_linux-hwe: released (4.15.0-88.88~16.04.1)
esm-infra/xenial_linux-hwe: released (4.15.0-88.88~16.04.1)
bionic_linux-hwe: released (5.3.0-40.32~18.04.1)
disco_linux-hwe: DNE
eoan_linux-hwe: DNE
focal_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (5.5~rc1)
precise/esm_linux-hwe-edge: DNE
trusty_linux-hwe-edge: DNE
trusty/esm_linux-hwe-edge: DNE
xenial_linux-hwe-edge: ignored (was needed now end-of-life)
esm-infra/xenial_linux-hwe-edge: ignored (was needed now end-of-life)
bionic_linux-hwe-edge: ignored (was needed now end-of-life)
disco_linux-hwe-edge: DNE
eoan_linux-hwe-edge: DNE
focal_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (5.5~rc1)
precise/esm_linux-lts-xenial: DNE
trusty_linux-lts-xenial: ignored (out of standard support)
trusty/esm_linux-lts-xenial: released (4.4.0-173.203~14.04.1)
xenial_linux-lts-xenial: DNE
bionic_linux-lts-xenial: DNE
disco_linux-lts-xenial: DNE
eoan_linux-lts-xenial: DNE
focal_linux-lts-xenial: DNE
devel_linux-lts-xenial: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (5.5~rc1)
precise/esm_linux-lts-trusty: ignored (was needs-triage ESM criteria)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
bionic_linux-lts-trusty: DNE
disco_linux-lts-trusty: DNE
eoan_linux-lts-trusty: DNE
focal_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-oem:
upstream_linux-oem: released (5.5~rc1)
precise/esm_linux-oem: DNE
trusty_linux-oem: DNE
trusty/esm_linux-oem: DNE
xenial_linux-oem: ignored (was needs-triage now end-of-life)
bionic_linux-oem: released (4.15.0-1073.83)
disco_linux-oem: ignored (reached end-of-life)
eoan_linux-oem: pending (4.15.0-1076.86)
focal_linux-oem: DNE
devel_linux-oem: DNE

Patches_linux-kvm:
upstream_linux-kvm: released (5.5~rc1)
precise/esm_linux-kvm: DNE
trusty_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
xenial_linux-kvm: released (4.4.0-1065.72)
esm-infra/xenial_linux-kvm: released (4.4.0-1065.72)
bionic_linux-kvm: released (4.15.0-1053.53)
disco_linux-kvm: ignored (was pending \[5.0.0-1025.27\] now end-of-life)
eoan_linux-kvm: released (5.3.0-1010.11)
focal_linux-kvm: not-affected (5.4.0-1004.4)
devel_linux-kvm: not-affected (5.4.0-1009.9)

Patches_linux-aws:
upstream_linux-aws: released (5.5~rc1)
precise/esm_linux-aws: DNE
trusty_linux-aws: ignored (out of standard support)
trusty/esm_linux-aws: released (4.4.0-1061.65)
xenial_linux-aws: released (4.4.0-1101.112)
esm-infra/xenial_linux-aws: released (4.4.0-1101.112)
bionic_linux-aws: released (4.15.0-1060.62)
disco_linux-aws: ignored (was pending \[5.0.0-1024.27\] now end-of-life)
eoan_linux-aws: released (5.3.0-1011.12)
focal_linux-aws: not-affected (5.4.0-1005.5)
devel_linux-aws: not-affected (5.4.0-1009.9)

Patches_linux-aws-hwe:
upstream_linux-aws-hwe: released (5.5~rc1)
precise/esm_linux-aws-hwe: DNE
trusty_linux-aws-hwe: DNE
trusty/esm_linux-aws-hwe: DNE
xenial_linux-aws-hwe: released (4.15.0-1060.62~16.04.1)
esm-infra/xenial_linux-aws-hwe: released (4.15.0-1060.62~16.04.1)
bionic_linux-aws-hwe: DNE
disco_linux-aws-hwe: DNE
eoan_linux-aws-hwe: DNE
focal_linux-aws-hwe: DNE
devel_linux-aws-hwe: DNE

Patches_linux-azure:
upstream_linux-azure: released (5.5~rc1)
precise/esm_linux-azure: DNE
trusty_linux-azure: ignored (out of standard support)
trusty/esm_linux-azure: released (4.15.0-1071.76~14.04.1)
xenial_linux-azure: released (4.15.0-1071.76)
esm-infra/xenial_linux-azure: released (4.15.0-1071.76)
bionic_linux-azure: released (5.0.0-1029.31~18.04.1)
disco_linux-azure: ignored (was pending \[5.0.0-1029.31\] now end-of-life)
eoan_linux-azure: released (5.3.0-1013.14)
focal_linux-azure: not-affected (5.4.0-1006.6)
devel_linux-azure: not-affected (5.4.0-1010.10)

Patches_linux-azure-edge:
upstream_linux-azure-edge: released (5.5~rc1)
precise/esm_linux-azure-edge: DNE
trusty_linux-azure-edge: DNE
trusty/esm_linux-azure-edge: DNE
xenial_linux-azure-edge: DNE
bionic_linux-azure-edge: ignored (was needs-triage now end-of-life)
disco_linux-azure-edge: DNE
eoan_linux-azure-edge: DNE
focal_linux-azure-edge: DNE
devel_linux-azure-edge: DNE

Patches_linux-gcp:
upstream_linux-gcp: released (5.5~rc1)
precise/esm_linux-gcp: DNE
trusty_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
xenial_linux-gcp: released (4.15.0-1055.59)
esm-infra/xenial_linux-gcp: released (4.15.0-1055.59)
bionic_linux-gcp: released (5.0.0-1029.30~18.04.1)
disco_linux-gcp: ignored (was pending \[5.0.0-1029.30\] now end-of-life)
eoan_linux-gcp: released (5.3.0-1012.13)
focal_linux-gcp: not-affected (5.4.0-1005.5)
devel_linux-gcp: not-affected (5.4.0-1009.9)

Patches_linux-gcp-edge:
upstream_linux-gcp-edge: released (5.5~rc1)
precise/esm_linux-gcp-edge: DNE
trusty_linux-gcp-edge: DNE
trusty/esm_linux-gcp-edge: DNE
xenial_linux-gcp-edge: DNE
bionic_linux-gcp-edge: ignored (was needs-triage now end-of-life)
disco_linux-gcp-edge: DNE
eoan_linux-gcp-edge: DNE
focal_linux-gcp-edge: DNE
devel_linux-gcp-edge: DNE

Patches_linux-gke-4.15:
upstream_linux-gke-4.15: released (5.5~rc1)
precise/esm_linux-gke-4.15: DNE
trusty_linux-gke-4.15: DNE
trusty/esm_linux-gke-4.15: DNE
xenial_linux-gke-4.15: DNE
bionic_linux-gke-4.15: released (4.15.0-1052.55)
disco_linux-gke-4.15: DNE
eoan_linux-gke-4.15: DNE
focal_linux-gke-4.15: DNE
devel_linux-gke-4.15: DNE

Patches_linux-gke-5.0:
upstream_linux-gke-5.0: released (5.5~rc1)
precise/esm_linux-gke-5.0: DNE
trusty_linux-gke-5.0: DNE
trusty/esm_linux-gke-5.0: DNE
xenial_linux-gke-5.0: DNE
bionic_linux-gke-5.0: released (5.0.0-1029.30~18.04.1)
disco_linux-gke-5.0: DNE
eoan_linux-gke-5.0: DNE
focal_linux-gke-5.0: DNE
devel_linux-gke-5.0: DNE

Patches_linux-oracle:
upstream_linux-oracle: released (5.5~rc1)
precise/esm_linux-oracle: DNE
trusty_linux-oracle: DNE
trusty/esm_linux-oracle: DNE
xenial_linux-oracle: released (4.15.0-1033.36~16.04.1)
esm-infra/xenial_linux-oracle: released (4.15.0-1033.36~16.04.1)
bionic_linux-oracle: released (4.15.0-1033.36)
disco_linux-oracle: ignored (was pending \[5.0.0-1010.15\] now end-of-life)
eoan_linux-oracle: released (5.3.0-1009.10)
focal_linux-oracle: not-affected (5.4.0-1005.5)
devel_linux-oracle: not-affected (5.4.0-1009.9)

Patches_linux-raspi2:
upstream_linux-raspi2: released (5.5~rc1)
precise/esm_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
xenial_linux-raspi2: released (4.4.0-1128.137)
bionic_linux-raspi2: released (4.15.0-1055.59)
disco_linux-raspi2: ignored (was pending \[5.0.0-1025.26\] now end-of-life)
eoan_linux-raspi2: released (5.3.0-1018.20)
focal_linux-raspi2: ignored (was needed now end-of-life)
devel_linux-raspi2: DNE

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (5.5~rc1)
precise/esm_linux-snapdragon: DNE
trusty_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
xenial_linux-snapdragon: released (4.4.0-1132.140)
bionic_linux-snapdragon: released (4.15.0-1072.79)
disco_linux-snapdragon: ignored (was pending \[5.0.0-1029.31\] now end-of-life)
eoan_linux-snapdragon: DNE
focal_linux-snapdragon: DNE
devel_linux-snapdragon: DNE

Patches_linux-oem-osp1:
upstream_linux-oem-osp1: released (5.5~rc1)
precise/esm_linux-oem-osp1: DNE
trusty_linux-oem-osp1: DNE
trusty/esm_linux-oem-osp1: DNE
xenial_linux-oem-osp1: DNE
bionic_linux-oem-osp1: released (5.0.0-1037.42)
disco_linux-oem-osp1: ignored (reached end-of-life)
eoan_linux-oem-osp1: released (5.0.0-1037.42)
focal_linux-oem-osp1: DNE
devel_linux-oem-osp1: DNE

Patches_linux-aws-5.0:
upstream_linux-aws-5.0: released (5.5~rc1)
precise/esm_linux-aws-5.0: DNE
trusty_linux-aws-5.0: DNE
trusty/esm_linux-aws-5.0: DNE
xenial_linux-aws-5.0: DNE
bionic_linux-aws-5.0: released (5.0.0-1024.27~18.04.1)
disco_linux-aws-5.0: DNE
eoan_linux-aws-5.0: DNE
focal_linux-aws-5.0: DNE
devel_linux-aws-5.0: DNE

Patches_linux-azure-5.3:
upstream_linux-azure-5.3: released (5.5~rc1)
precise/esm_linux-azure-5.3: DNE
trusty_linux-azure-5.3: DNE
trusty/esm_linux-azure-5.3: DNE
xenial_linux-azure-5.3: DNE
bionic_linux-azure-5.3: released (5.3.0-1013.14~18.04.1)
disco_linux-azure-5.3: DNE
eoan_linux-azure-5.3: DNE
focal_linux-azure-5.3: DNE
devel_linux-azure-5.3: DNE

Patches_linux-gcp-5.3:
upstream_linux-gcp-5.3: released (5.5~rc1)
precise/esm_linux-gcp-5.3: DNE
trusty_linux-gcp-5.3: DNE
trusty/esm_linux-gcp-5.3: DNE
xenial_linux-gcp-5.3: DNE
bionic_linux-gcp-5.3: released (5.3.0-1012.13~18.04.1)
disco_linux-gcp-5.3: DNE
eoan_linux-gcp-5.3: DNE
focal_linux-gcp-5.3: DNE
devel_linux-gcp-5.3: DNE

Patches_linux-oracle-5.0:
upstream_linux-oracle-5.0: released (5.5~rc1)
precise/esm_linux-oracle-5.0: DNE
trusty_linux-oracle-5.0: DNE
trusty/esm_linux-oracle-5.0: DNE
xenial_linux-oracle-5.0: DNE
bionic_linux-oracle-5.0: released (5.0.0-1010.15~18.04.1)
disco_linux-oracle-5.0: DNE
eoan_linux-oracle-5.0: DNE
focal_linux-oracle-5.0: DNE
devel_linux-oracle-5.0: DNE

Patches_linux-raspi2-5.3:
upstream_linux-raspi2-5.3: released (5.5~rc1)
precise/esm_linux-raspi2-5.3: DNE
trusty_linux-raspi2-5.3: DNE
trusty/esm_linux-raspi2-5.3: DNE
xenial_linux-raspi2-5.3: DNE
bionic_linux-raspi2-5.3: released (5.3.0-1018.20~18.04.1)
eoan_linux-raspi2-5.3: DNE
focal_linux-raspi2-5.3: DNE
devel_linux-raspi2-5.3: DNE

Patches_linux-oem-5.6:
upstream_linux-oem-5.6: released (5.5~rc1)
precise/esm_linux-oem-5.6: DNE
trusty_linux-oem-5.6: DNE
trusty/esm_linux-oem-5.6: DNE
xenial_linux-oem-5.6: DNE
bionic_linux-oem-5.6: DNE
eoan_linux-oem-5.6: DNE
focal_linux-oem-5.6: not-affected (5.6.0-1007.7)
devel_linux-oem-5.6: not-affected (5.6.0-1007.7)

Patches_linux-gke-5.3:
upstream_linux-gke-5.3: released (5.5~rc1)
precise/esm_linux-gke-5.3: DNE
trusty_linux-gke-5.3: DNE
trusty/esm_linux-gke-5.3: DNE
xenial_linux-gke-5.3: DNE
bionic_linux-gke-5.3: released (5.3.0-1012.13~18.04.1)
eoan_linux-gke-5.3: DNE
focal_linux-gke-5.3: DNE
devel_linux-gke-5.3: DNE

Patches_linux-oracle-5.3:
upstream_linux-oracle-5.3: released (5.5~rc1)
precise/esm_linux-oracle-5.3: DNE
trusty_linux-oracle-5.3: DNE
trusty/esm_linux-oracle-5.3: DNE
xenial_linux-oracle-5.3: DNE
bionic_linux-oracle-5.3: not-affected (5.3.0-1011.12~18.04.1)
eoan_linux-oracle-5.3: DNE
focal_linux-oracle-5.3: DNE
devel_linux-oracle-5.3: DNE

Patches_linux-riscv:
upstream_linux-riscv: released (5.5~rc1)
precise/esm_linux-riscv: DNE
trusty_linux-riscv: DNE
trusty/esm_linux-riscv: DNE
xenial_linux-riscv: DNE
bionic_linux-riscv: DNE
eoan_linux-riscv: DNE
focal_linux-riscv: not-affected (5.4.0-24.28)
devel_linux-riscv: not-affected (5.4.0-24.28)

Patches_linux-raspi:
upstream_linux-raspi: released (5.5~rc1)
precise/esm_linux-raspi: DNE
trusty_linux-raspi: DNE
trusty/esm_linux-raspi: DNE
xenial_linux-raspi: DNE
bionic_linux-raspi: DNE
eoan_linux-raspi: DNE
focal_linux-raspi: not-affected (5.4.0-1007.7)
devel_linux-raspi: not-affected (5.4.0-1008.8)

Patches_linux-azure-4.15:
upstream_linux-azure-4.15: released (5.5~rc1)
precise/esm_linux-azure-4.15: DNE
trusty_linux-azure-4.15: DNE
trusty/esm_linux-azure-4.15: DNE
xenial_linux-azure-4.15: DNE
bionic_linux-azure-4.15: not-affected (4.15.0-1082.92)
eoan_linux-azure-4.15: DNE
focal_linux-azure-4.15: DNE
devel_linux-azure-4.15: DNE

Patches_linux-aws-5.3:
upstream_linux-aws-5.3: released (5.5~rc1)
precise/esm_linux-aws-5.3: DNE
trusty_linux-aws-5.3: DNE
trusty/esm_linux-aws-5.3: DNE
xenial_linux-aws-5.3: DNE
bionic_linux-aws-5.3: not-affected (5.3.0-1016.17~18.04.1)
eoan_linux-aws-5.3: DNE
focal_linux-aws-5.3: DNE
devel_linux-aws-5.3: DNE

Patches_linux-gcp-4.15:
upstream_linux-gcp-4.15: released (5.5~rc1)
precise/esm_linux-gcp-4.15: DNE
trusty_linux-gcp-4.15: DNE
trusty/esm_linux-gcp-4.15: DNE
xenial_linux-gcp-4.15: DNE
bionic_linux-gcp-4.15: not-affected (4.15.0-1071.81)
eoan_linux-gcp-4.15: DNE
focal_linux-gcp-4.15: DNE
devel_linux-gcp-4.15: DNE