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[USN-4997-1] Linux kernel vulnerabilities

Severity High
Affected Packages 33
CVEs 17
Info Packages Vulnerabilities

Several security issues were fixed in the Linux kernel.

Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-3609)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly enforce limits for pointer operations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-33200)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly clear received fragments from memory in some situations. A
physically proximate attacker could possibly use this issue to inject
packets or expose sensitive information. (CVE-2020-24586)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
incorrectly handled encrypted fragments. A physically proximate attacker
could possibly use this issue to decrypt fragments. (CVE-2020-24587)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
incorrectly handled certain malformed frames. If a user were tricked into
connecting to a malicious server, a physically proximate attacker could use
this issue to inject packets. (CVE-2020-24588)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
incorrectly handled EAPOL frames from unauthenticated senders. A physically
proximate attacker could inject malicious packets to cause a denial of
service (system crash). (CVE-2020-26139)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly verify certain fragmented frames. A physically proximate
attacker could possibly use this issue to inject or decrypt packets.
(CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
accepted plaintext fragments in certain situations. A physically proximate
attacker could use this issue to inject packets. (CVE-2020-26145)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could
reassemble mixed encrypted and plaintext fragments. A physically proximate
attacker could possibly use this issue to inject packets or exfiltrate
selected fragments. (CVE-2020-26147)

Or Cohen discovered that the SCTP implementation in the Linux kernel
contained a race condition in some situations, leading to a use-after-free
condition. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2021-23133)

Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the
nfc implementation in the Linux kernel. A privileged local attacker could
use this issue to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-23134)

Manfred Paul discovered that the extended Berkeley Packet Filter (eBPF)
implementation in the Linux kernel contained an out-of-bounds
vulnerability. A local attacker could use this issue to execute arbitrary
code. (CVE-2021-31440)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel
did not properly prevent speculative loads in certain situations. A local
attacker could use this to expose sensitive information (kernel memory).
(CVE-2021-31829)

It was discovered that a race condition in the kernel Bluetooth subsystem
could lead to use-after-free of slab objects. An attacker could use this
issue to possibly execute arbitrary code. (CVE-2021-32399)

It was discovered that a use-after-free existed in the Bluetooth HCI driver
of the Linux kernel. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2021-33034)

It was discovered that an out-of-bounds (OOB) memory access flaw existed in
the f2fs module of the Linux kernel. A local attacker could use this issue
to cause a denial of service (system crash). (CVE-2021-3506)

Mathias Krause discovered that a null pointer dereference existed in the
Nitro Enclaves kernel driver of the Linux kernel. A local attacker could
use this issue to cause a denial of service or possibly execute arbitrary
code. (CVE-2021-3543)

Package Affected Version
pkg:deb/ubuntu/linux-image-virtual?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-virtual-hwe-20.04?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-virtual-hwe-20.04-edge?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-raspi?distro=hirsute < 5.11.0.1012.10
pkg:deb/ubuntu/linux-image-raspi-nolpae?distro=hirsute < 5.11.0.1012.10
pkg:deb/ubuntu/linux-image-oracle?distro=hirsute < 5.11.0.1010.10
pkg:deb/ubuntu/linux-image-oem-20.04?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-lowlatency?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-lowlatency-hwe-20.04?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-lowlatency-hwe-20.04-edge?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-gke?distro=hirsute < 5.11.0.1011.11
pkg:deb/ubuntu/linux-image-generic?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-lpae?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-20.04?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-20.04-edge?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-hwe-20.04?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-hwe-20.04-edge?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-64k?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-64k-hwe-20.04?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-generic-64k-hwe-20.04-edge?distro=hirsute < 5.11.0.22.23
pkg:deb/ubuntu/linux-image-gcp?distro=hirsute < 5.11.0.1011.11
pkg:deb/ubuntu/linux-image-azure?distro=hirsute < 5.11.0.1009.9
pkg:deb/ubuntu/linux-image-aws?distro=hirsute < 5.11.0.1011.11
pkg:deb/ubuntu/linux-image-5.11.0-22-lowlatency?distro=hirsute < 5.11.0-22.23
pkg:deb/ubuntu/linux-image-5.11.0-22-generic?distro=hirsute < 5.11.0-22.23
pkg:deb/ubuntu/linux-image-5.11.0-22-generic-lpae?distro=hirsute < 5.11.0-22.23
pkg:deb/ubuntu/linux-image-5.11.0-22-generic-64k?distro=hirsute < 5.11.0-22.23
pkg:deb/ubuntu/linux-image-5.11.0-1012-raspi?distro=hirsute < 5.11.0-1012.13
pkg:deb/ubuntu/linux-image-5.11.0-1012-raspi-nolpae?distro=hirsute < 5.11.0-1012.13
pkg:deb/ubuntu/linux-image-5.11.0-1011-gcp?distro=hirsute < 5.11.0-1011.12
pkg:deb/ubuntu/linux-image-5.11.0-1011-aws?distro=hirsute < 5.11.0-1011.11
pkg:deb/ubuntu/linux-image-5.11.0-1010-oracle?distro=hirsute < 5.11.0-1010.10
pkg:deb/ubuntu/linux-image-5.11.0-1009-azure?distro=hirsute < 5.11.0-1009.9
ID
USN-4997-1
Severity
high
Severity from
CVE-2021-23134
URL
https://ubuntu.com/security/notices/USN-4997-1
Published
2021-06-23T01:18:14
(3 years ago)
Modified
2021-06-23T01:18:14
(3 years ago)
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:deb/ubuntu/linux-image-virtual?distro=hirsute ubuntu linux-image-virtual < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-20.04?distro=hirsute ubuntu linux-image-virtual-hwe-20.04 < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-20.04-edge?distro=hirsute ubuntu linux-image-virtual-hwe-20.04-edge < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-raspi?distro=hirsute ubuntu linux-image-raspi < 5.11.0.1012.10 hirsute
Affected pkg:deb/ubuntu/linux-image-raspi-nolpae?distro=hirsute ubuntu linux-image-raspi-nolpae < 5.11.0.1012.10 hirsute
Affected pkg:deb/ubuntu/linux-image-oracle?distro=hirsute ubuntu linux-image-oracle < 5.11.0.1010.10 hirsute
Affected pkg:deb/ubuntu/linux-image-oem-20.04?distro=hirsute ubuntu linux-image-oem-20.04 < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-lowlatency?distro=hirsute ubuntu linux-image-lowlatency < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-20.04?distro=hirsute ubuntu linux-image-lowlatency-hwe-20.04 < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-20.04-edge?distro=hirsute ubuntu linux-image-lowlatency-hwe-20.04-edge < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-gke?distro=hirsute ubuntu linux-image-gke < 5.11.0.1011.11 hirsute
Affected pkg:deb/ubuntu/linux-image-generic?distro=hirsute ubuntu linux-image-generic < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-lpae?distro=hirsute ubuntu linux-image-generic-lpae < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-20.04?distro=hirsute ubuntu linux-image-generic-lpae-hwe-20.04 < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-20.04-edge?distro=hirsute ubuntu linux-image-generic-lpae-hwe-20.04-edge < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-hwe-20.04?distro=hirsute ubuntu linux-image-generic-hwe-20.04 < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-hwe-20.04-edge?distro=hirsute ubuntu linux-image-generic-hwe-20.04-edge < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-64k?distro=hirsute ubuntu linux-image-generic-64k < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-64k-hwe-20.04?distro=hirsute ubuntu linux-image-generic-64k-hwe-20.04 < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-generic-64k-hwe-20.04-edge?distro=hirsute ubuntu linux-image-generic-64k-hwe-20.04-edge < 5.11.0.22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-gcp?distro=hirsute ubuntu linux-image-gcp < 5.11.0.1011.11 hirsute
Affected pkg:deb/ubuntu/linux-image-azure?distro=hirsute ubuntu linux-image-azure < 5.11.0.1009.9 hirsute
Affected pkg:deb/ubuntu/linux-image-aws?distro=hirsute ubuntu linux-image-aws < 5.11.0.1011.11 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-22-lowlatency?distro=hirsute ubuntu linux-image-5.11.0-22-lowlatency < 5.11.0-22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-22-generic?distro=hirsute ubuntu linux-image-5.11.0-22-generic < 5.11.0-22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-22-generic-lpae?distro=hirsute ubuntu linux-image-5.11.0-22-generic-lpae < 5.11.0-22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-22-generic-64k?distro=hirsute ubuntu linux-image-5.11.0-22-generic-64k < 5.11.0-22.23 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-1012-raspi?distro=hirsute ubuntu linux-image-5.11.0-1012-raspi < 5.11.0-1012.13 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-1012-raspi-nolpae?distro=hirsute ubuntu linux-image-5.11.0-1012-raspi-nolpae < 5.11.0-1012.13 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-1011-gcp?distro=hirsute ubuntu linux-image-5.11.0-1011-gcp < 5.11.0-1011.12 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-1011-aws?distro=hirsute ubuntu linux-image-5.11.0-1011-aws < 5.11.0-1011.11 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-1010-oracle?distro=hirsute ubuntu linux-image-5.11.0-1010-oracle < 5.11.0-1010.10 hirsute
Affected pkg:deb/ubuntu/linux-image-5.11.0-1009-azure?distro=hirsute ubuntu linux-image-5.11.0-1009-azure < 5.11.0-1009.9 hirsute
# 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