CVE-2020-11668
Vulnerability Summary
Timeline
Description
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.
CVSS Metrics
- v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- v2.0•MEDIUM•Score: 5.6AV:L/AC:L/Au:N/C:N/I:P/A:C
EPSS Trends
Current EPSS score: 0.48%• Percentile: 41%
Techniques & Countermeasures
- CWE-476•NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Systems
- debian•linux
< 5.5.17-1 | < 5.5.17-1 | < 5.5.17-1 | < 5.5.17-1
- ubuntu•linux
all | < 4.4.0-179.209 | < 4.15.0-99.100
- ubuntu•linux-aws
< 4.4.0-1067.71 | < 4.4.0-1107.118 | < 4.15.0-1066.70
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.3
< 5.3.0-1019.21~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2018.18 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1066.70~16.04.1
- ubuntu•linux-azure
< 4.15.0-1082.92~14.04.1 | < 4.15.0-1082.92~16.04.1 | all
- ubuntu•linux-azure-5.3
< 5.3.0-1022.23~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2006.7 | all
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.4.0-1034.39 | all | < 4.15.0-1029.34
- ubuntu•linux-gcp
< 4.15.0-1061.65 | all
- ubuntu•linux-gcp-5.3
< 5.3.0-1020.22~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1058.61
- ubuntu•linux-gke-5.0
< 5.0.0-1037.38
- ubuntu•linux-gke-5.3
< 5.3.0-1020.22~18.04.1
- ubuntu•linux-hwe
< 4.15.0-99.100~16.04.1 | < 5.3.0-53.47~18.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1071.78 | < 4.15.0-1059.60
- ubuntu•linux-lts-xenial
< 4.4.0-179.209~14.04.1
- ubuntu•linux-oem
< 4.15.0-1080.90
- ubuntu•linux-oem-osp1
< 5.0.0-1052.57
- ubuntu•linux-oracle
< 4.15.0-1038.42~16.04.1 | < 4.15.0-1038.42
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.3
< 5.3.0-1018.20~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1133.142 | < 4.15.0-1061.65 | all
- ubuntu•linux-raspi2-5.3
< 5.3.0-1026.28~18.04.1
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all
- ubuntu•linux-snapdragon
< 4.4.0-1137.145 | < 4.15.0-1077.84
- linux•linux_kernel
< 5.6.1
References (20)
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.1
- https://github.com/torvalds/linux/commit/a246b4d547708f33ff4d4b9a7a5dbac741dc89d8
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a246b4d547708f33ff4d4b9a7a5dbac741dc89d8
- https://security.netapp.com/advisory/ntap-20200430-0004/
- https://usn.ubuntu.com/4345-1/
- https://usn.ubuntu.com/4364-1/
- https://usn.ubuntu.com/4368-1/
- https://usn.ubuntu.com/4369-1/
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://www.debian.org/security/2020/dsa-4698
- https://ubuntu.com/security/CVE-2020-11668
- https://git.kernel.org/linus/a246b4d547708f33ff4d4b9a7a5dbac741dc89d8
- https://ubuntu.com/security/notices/USN-4345-1
- https://ubuntu.com/security/notices/USN-4364-1
- https://ubuntu.com/security/notices/USN-4369-1
- https://ubuntu.com/security/notices/USN-4368-1
- https://www.cve.org/CVERecord?id=CVE-2020-11668
- https://security-tracker.debian.org/tracker/CVE-2020-11668