1. Home
  2. Security Advisories
  3. Ubuntu
  4. USN-5115-1

[USN-5115-1] Linux kernel (OEM) vulnerabilities

Severity Medium
Affected Packages 21
CVEs 16
Info Packages Vulnerabilities

Several security issues were fixed in the Linux kernel.

It was discovered that a race condition existed in the Atheros Ath9k WiFi
driver in the Linux kernel. An attacker could possibly use this to expose
sensitive information (WiFi network traffic). (CVE-2020-3702)

Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk
discovered that the BPF verifier in the Linux kernel missed possible
mispredicted branches due to type confusion, allowing a side-channel
attack. An attacker could use this to expose sensitive information.
(CVE-2021-33624)

Benedict Schlueter discovered that the BPF subsystem in the Linux kernel
did not properly protect against Speculative Store Bypass (SSB) side-
channel attacks in some situations. A local attacker could possibly use
this to expose sensitive information. (CVE-2021-34556)

Piotr Krysiuk discovered that the BPF subsystem in the Linux kernel did not
properly protect against Speculative Store Bypass (SSB) side-channel
attacks in some situations. A local attacker could possibly use this to
expose sensitive information. (CVE-2021-35477)

It was discovered that the tracing subsystem in the Linux kernel did not
properly keep track of per-cpu ring buffer state. A privileged attacker
could use this to cause a denial of service. (CVE-2021-3679)

It was discovered that the Option USB High Speed Mobile device driver in
the Linux kernel did not properly handle error conditions. A physically
proximate attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2021-37159)

Alois Wohlschlager discovered that the overlay file system in the Linux
kernel did not restrict private clones in some situations. An attacker
could use this to expose sensitive information. (CVE-2021-3732)

It was discovered that the btrfs file system in the Linux kernel did not
properly handle removing a non-existent device id. An attacker with
CAP_SYS_ADMIN could use this to cause a denial of service. (CVE-2021-3739)

It was discovered that the Qualcomm IPC Router protocol implementation in
the Linux kernel did not properly validate metadata in some situations. A
local attacker could use this to cause a denial of service (system crash)
or expose sensitive information. (CVE-2021-3743)

It was discovered that the virtual terminal (vt) device implementation in
the Linux kernel contained a race condition in its ioctl handling that led
to an out-of-bounds read vulnerability. A local attacker could possibly use
this to expose sensitive information. (CVE-2021-3753)

It was discovered that the Linux kernel did not properly account for the
memory usage of certain IPC objects. A local attacker could use this to
cause a denial of service (memory exhaustion). (CVE-2021-3759)

It was discovered that the BPF subsystem in the Linux kernel contained an
integer overflow in its hash table implementation. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2021-38166)

It was discovered that the MAX-3421 host USB device driver in the Linux
kernel did not properly handle device removal events. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2021-38204)

It was discovered that the Xilinx 10/100 Ethernet Lite device driver in the
Linux kernel could report pointer addresses in some situations. An attacker
could use this information to ease the exploitation of another
vulnerability. (CVE-2021-38205)

It was discovered that the ext4 file system in the Linux kernel contained a
race condition when writing xattrs to an inode. A local attacker could use
this to cause a denial of service or possibly gain administrative
privileges. (CVE-2021-40490)

It was discovered that the 6pack network protocol driver in the Linux
kernel did not properly perform validation checks. A privileged attacker
could use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2021-42008)

Package Affected Version
pkg:deb/ubuntu/linux-tools-oem-20.04b?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-tools-oem-20.04?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-tools-oem-20.04-edge?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-tools-5.10.0-1050-oem?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-oem-5.10-tools-host?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-oem-5.10-tools-5.10.0-1050?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-oem-5.10-headers-5.10.0-1050?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-oem-20.04b?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-oem-20.04?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-oem-20.04-edge?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-modules-5.10.0-1050-oem?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-image-unsigned-5.10.0-1050-oem?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-image-oem-20.04b?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-image-oem-20.04?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-image-oem-20.04-edge?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-image-5.10.0-1050-oem?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-headers-oem-20.04b?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-headers-oem-20.04?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-headers-oem-20.04-edge?distro=focal < 5.10.0.1050.52
pkg:deb/ubuntu/linux-headers-5.10.0-1050-oem?distro=focal < 5.10.0-1050.52
pkg:deb/ubuntu/linux-buildinfo-5.10.0-1050-oem?distro=focal < 5.10.0-1050.52
ID
USN-5115-1
Severity
medium
URL
https://ubuntu.com/security/notices/USN-5115-1
Published
2021-10-20T18:39:34
(2 years ago)
Modified
2021-10-20T18:39:34
(2 years ago)
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:deb/ubuntu/linux-tools-oem-20.04b?distro=focal ubuntu linux-tools-oem-20.04b < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-tools-oem-20.04?distro=focal ubuntu linux-tools-oem-20.04 < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-tools-oem-20.04-edge?distro=focal ubuntu linux-tools-oem-20.04-edge < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-tools-5.10.0-1050-oem?distro=focal ubuntu linux-tools-5.10.0-1050-oem < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-oem-5.10-tools-host?distro=focal ubuntu linux-oem-5.10-tools-host < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-oem-5.10-tools-5.10.0-1050?distro=focal ubuntu linux-oem-5.10-tools-5.10.0-1050 < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-oem-5.10-headers-5.10.0-1050?distro=focal ubuntu linux-oem-5.10-headers-5.10.0-1050 < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-oem-20.04b?distro=focal ubuntu linux-oem-20.04b < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-oem-20.04?distro=focal ubuntu linux-oem-20.04 < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-oem-20.04-edge?distro=focal ubuntu linux-oem-20.04-edge < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-modules-5.10.0-1050-oem?distro=focal ubuntu linux-modules-5.10.0-1050-oem < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-image-unsigned-5.10.0-1050-oem?distro=focal ubuntu linux-image-unsigned-5.10.0-1050-oem < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-image-oem-20.04b?distro=focal ubuntu linux-image-oem-20.04b < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-image-oem-20.04?distro=focal ubuntu linux-image-oem-20.04 < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-image-oem-20.04-edge?distro=focal ubuntu linux-image-oem-20.04-edge < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-image-5.10.0-1050-oem?distro=focal ubuntu linux-image-5.10.0-1050-oem < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-headers-oem-20.04b?distro=focal ubuntu linux-headers-oem-20.04b < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-headers-oem-20.04?distro=focal ubuntu linux-headers-oem-20.04 < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-headers-oem-20.04-edge?distro=focal ubuntu linux-headers-oem-20.04-edge < 5.10.0.1050.52 focal
Affected pkg:deb/ubuntu/linux-headers-5.10.0-1050-oem?distro=focal ubuntu linux-headers-5.10.0-1050-oem < 5.10.0-1050.52 focal
Affected pkg:deb/ubuntu/linux-buildinfo-5.10.0-1050-oem?distro=focal ubuntu linux-buildinfo-5.10.0-1050-oem < 5.10.0-1050.52 focal
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date