Ubuntu.comUB:CVE-2022-2977CVE-2022-2977
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
EPSS
Percentile
5.1%
A flaw was found in the Linux kernel implementation of proxied virtualized
TPM devices. On a system where virtualized TPM devices are configured (this
is not the default) a local attacker can create a use-after-free and create
a situation where it may be possible to escalate privileges on the system.
Bugs
Notes
| Author | Note |
|---|---|
| sbeattie | unclear if fb5abce6b2bb (“tpm: use try_get_ops() in tpm-space.c”) is related or a separate issue. |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < 4.15.0-189.200 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < 5.4.0-117.132 | UNKNOWN |
| ubuntu | 22.04 | noarch | linux | < 5.15.0-35.36 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1137.148 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1078.84 | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1009.11 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1078.84~18.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1137.148~16.04.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1083.87 | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-azure | < 5.15.0-1008.9 | UNKNOWN |
Related
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
EPSS
Percentile
5.1%