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CVE-2020-11668

Published: 9 April 2020

In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) mishandles invalid descriptors, aka CID-a246b4d54770.

From the Ubuntu Security Team

It was discovered that the Xirlink C-It USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash).

Priority

Medium

Cvss 3 Severity Score

7.1

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-99.100)
eoan
Released (5.3.0-53.47)
focal Not vulnerable
(5.4.0-24.28)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.7~rc1)
xenial
Released (4.4.0-179.209)
Patches:
Introduced by

59f8b0bf3c12598cf4a5b333b0287774dbbdbe1f

Fixed by a246b4d547708f33ff4d4b9a7a5dbac741dc89d8
Introduced by

659fefa0eb177ae7377206a7a5a59161b0668c58

Fixed by a246b4d547708f33ff4d4b9a7a5dbac741dc89d8
linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1066.70)
eoan
Released (5.3.0-1019.21)
focal Not vulnerable
(5.4.0-1008.8)
trusty
Released (4.4.0-1067.71)
upstream
Released (5.7~rc1)
xenial
Released (4.4.0-1107.118)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1019.21~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial
Released (4.15.0-1066.70~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan
Released (5.3.0-1022.23)
focal Not vulnerable
(5.4.0-1009.9)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.7~rc1)
xenial
Released (4.15.0-1082.92~16.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1082.92)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1022.23~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan
Released (5.3.0-1020.22)
focal Not vulnerable
(5.4.0-1008.8)
trusty Does not exist

upstream
Released (5.7~rc1)
xenial
Released (4.15.0-1061.65)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1071.81)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1020.22~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1058.61)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1037.38)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1020.22~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-53.47~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial
Released (4.15.0-99.100~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Ignored
(was needs-triage now end-of-life)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1059.60)
eoan
Released (5.3.0-1017.19)
focal Not vulnerable
(5.4.0-1007.7)
trusty Does not exist

upstream
Released (5.7~rc1)
xenial
Released (4.4.0-1071.78)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

trusty
Released (4.4.0-179.209~14.04.1)
upstream
Released (5.7~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1080.90)
eoan Pending
(4.15.0-1087.97)
focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Ignored
(was needs-triage now end-of-life)
linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Not vulnerable
(5.6.0-1007.7)
trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1052.57)
eoan Ignored
(reached end-of-life)
focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1038.42)
eoan
Released (5.3.0-1018.20)
focal Not vulnerable
(5.4.0-1008.8)
trusty Does not exist

upstream
Released (5.7~rc1)
xenial
Released (4.15.0-1038.42~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1018.20~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Not vulnerable
(5.4.0-1008.8)
trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1061.65)
eoan
Released (5.3.0-1025.27)
focal Ignored
(was needs-triage now end-of-life)
trusty Does not exist

upstream
Released (5.7~rc1)
xenial
Released (4.4.0-1133.142)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1026.28~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Not vulnerable
(5.4.0-24.28)
trusty Does not exist

upstream
Released (5.7~rc1)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1077.84)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.7~rc1)
xenial
Released (4.4.0-1137.145)

Severity score breakdown

Parameter Value
Base score 7.1
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H