7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
64.2%
It was discovered that the virtual file system implementation in the Linux
kernel contained an unsigned to signed integer conversion error. A local
attacker could use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2021-33909)
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 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 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)
It was discovered that the bluetooth subsystem in the Linux kernel did not
properly perform access control. An authenticated attacker could possibly
use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)
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)
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)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 18.04 | noarch | linux-image-4.15.0-1078-oracle | < 4.15.0-1078.86 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-image-4.15.0-1078-oracle-dbgsym | < 4.15.0-1078.86 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-image-4.15.0-1092-raspi2 | < 4.15.0-1092.98 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-buildinfo-4.15.0-1092-raspi2 | < 4.15.0-1092.98 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-headers-4.15.0-1092-raspi2 | < 4.15.0-1092.98 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-image-4.15.0-1092-raspi2-dbgsym | < 4.15.0-1092.98 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-modules-4.15.0-1092-raspi2 | < 4.15.0-1092.98 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-raspi2-headers-4.15.0-1092 | < 4.15.0-1092.98 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-raspi2-tools-4.15.0-1092 | < 4.15.0-1092.98 | UNKNOWN |
Ubuntu | 18.04 | noarch | linux-tools-4.15.0-1092-raspi2 | < 4.15.0-1092.98 | UNKNOWN |
ubuntu.com/security/CVE-2020-24586
ubuntu.com/security/CVE-2020-24587
ubuntu.com/security/CVE-2020-26139
ubuntu.com/security/CVE-2020-26147
ubuntu.com/security/CVE-2020-26558
ubuntu.com/security/CVE-2021-0129
ubuntu.com/security/CVE-2021-23134
ubuntu.com/security/CVE-2021-31829
ubuntu.com/security/CVE-2021-32399
ubuntu.com/security/CVE-2021-33034
ubuntu.com/security/CVE-2021-33200
ubuntu.com/security/CVE-2021-33909
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.002 Low
EPSS
Percentile
64.2%