CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
46.5%
USN-5267-1 fixed vulnerabilities in the Linux kernel. Unfortunately,
that update introduced a regression that caused the kernel to freeze
when accessing CIFS shares in some situations. This update fixes
the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the Bluetooth subsystem in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-3640)
Likang Luo discovered that a race condition existed in the Bluetooth
subsystem of the Linux kernel, leading to a use-after-free vulnerability. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2021-3752)
Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel
did not properly perform bounds checking in some situations. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2021-42739)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 20.04 | noarch | linux-image-5.4.0-99-lowlatency | < 5.4.0-99.112 | UNKNOWN |
Ubuntu | 20.04 | noarch | kernel-signed-image-5.4.0-99-generic-di | < 5.4.0-99.112 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-image-5.4.0-99-generic | < 5.4.0-99.112 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-image-5.4.0-99-generic-dbgsym | < 5.4.0-99.112 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-image-5.4.0-99-lowlatency-dbgsym | < 5.4.0-99.112 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-image-gkeop | < 5.4.0.1033.36 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-cloud-tools-gkeop | < 5.4.0.1033.36 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-cloud-tools-gkeop-5.4 | < 5.4.0.1033.36 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-gkeop | < 5.4.0.1033.36 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-gkeop-5.4 | < 5.4.0.1033.36 | UNKNOWN |
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
46.5%