What is the severity of CVE-2022-2977?

CVE-2022-2977 is considered a high-severity vulnerability due to the potential for local privilege escalation.

How do I fix CVE-2022-2977?

To mitigate CVE-2022-2977, upgrade your Linux kernel to a version that is not affected by the vulnerability.

Which versions of the Linux kernel are affected by CVE-2022-2977?

CVE-2022-2977 affects Linux kernel versions between 4.12 and 5.17.1, specifically the versions 4.14.276 to 4.19.238, 4.20 to 5.4.189, 5.5 to 5.10.110, 5.11 to 5.15.33, and 5.16 to 5.16.19.

What type of attack can exploit CVE-2022-2977?

CVE-2022-2977 can be exploited by a local attacker to create a use-after-free condition, potentially leading to privilege escalation.

Is virtualized TPM device configuration a default setting for Linux systems regarding CVE-2022-2977?

No, the configuration of virtualized TPM devices is not a default setting in Linux systems.

Vulnerability/
CVE-2022-2977

high

7.8

CWE

416

14/9/2022

3/8/2024

CVE-2022-2977: Use After Free

First published: Wed Sep 14 2022(Updated: )

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.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
Linux Kernel	>=4.12<4.14.276
Linux Kernel	>=4.15<4.19.238
Linux Kernel	>=4.20<5.4.189
Linux Kernel	>=5.5<5.10.110
Linux Kernel	>=5.11<5.15.33
Linux Kernel	>=5.16<5.16.19
Linux Kernel	>=5.17<5.17.1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d8e7007dc7c4d7c8366739bbcd3f5e51dcd470f

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2022-2977?
CVE-2022-2977 is considered a high-severity vulnerability due to the potential for local privilege escalation.
How do I fix CVE-2022-2977?
To mitigate CVE-2022-2977, upgrade your Linux kernel to a version that is not affected by the vulnerability.
Which versions of the Linux kernel are affected by CVE-2022-2977?
CVE-2022-2977 affects Linux kernel versions between 4.12 and 5.17.1, specifically the versions 4.14.276 to 4.19.238, 4.20 to 5.4.189, 5.5 to 5.10.110, 5.11 to 5.15.33, and 5.16 to 5.16.19.
What type of attack can exploit CVE-2022-2977?
CVE-2022-2977 can be exploited by a local attacker to create a use-after-free condition, potentially leading to privilege escalation.
Is virtualized TPM device configuration a default setting for Linux systems regarding CVE-2022-2977?
No, the configuration of virtualized TPM devices is not a default setting in Linux systems.

agent/references
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/severity
agent/last-modified-date
agent/remedy
agent/author
agent/weakness
agent/description
agent/event
agent/first-publish-date
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/linux
canonical/linux kernel
version/linux kernel/4.12
version/linux kernel/4.15
version/linux kernel/4.20
version/linux kernel/5.5
version/linux kernel/5.11
version/linux kernel/5.16
version/linux kernel/5.17

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Contact

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Frequently Asked Questions

What is the severity of CVE-2022-2977?
CVE-2022-2977 is considered a high-severity vulnerability due to the potential for local privilege escalation.
How do I fix CVE-2022-2977?
To mitigate CVE-2022-2977, upgrade your Linux kernel to a version that is not affected by the vulnerability.
Which versions of the Linux kernel are affected by CVE-2022-2977?
CVE-2022-2977 affects Linux kernel versions between 4.12 and 5.17.1, specifically the versions 4.14.276 to 4.19.238, 4.20 to 5.4.189, 5.5 to 5.10.110, 5.11 to 5.15.33, and 5.16 to 5.16.19.
What type of attack can exploit CVE-2022-2977?
CVE-2022-2977 can be exploited by a local attacker to create a use-after-free condition, potentially leading to privilege escalation.
Is virtualized TPM device configuration a default setting for Linux systems regarding CVE-2022-2977?
No, the configuration of virtualized TPM devices is not a default setting in Linux systems.