USN-5443-2: Linux kernel vulnerabilities
First published: Wed Jun 01 2022(Updated: )
Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-29581) Jann Horn discovered that the Linux kernel did not properly enforce seccomp restrictions in some situations. A local attacker could use this to bypass intended seccomp sandbox restrictions. (CVE-2022-30594)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-5.13.0-1030-oracle | <5.13.0-1030.35 | 5.13.0-1030.35 |
| =21.10 | ||
| All of | ||
| ubuntu/linux-image-oracle | <5.13.0.1030.30 | 5.13.0.1030.30 |
| =21.10 | ||
| All of | ||
| ubuntu/linux-image-oracle | <5.13.0.1030.35~20.04.1 | 5.13.0.1030.35~20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-5.13.0-1030-oracle | <5.13.0-1030.35~20.04.1 | 5.13.0-1030.35~20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-gcp | <5.13.0.1027.32~20.04.1 | 5.13.0.1027.32~20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-5.13.0-1027-gcp | <5.13.0-1027.32~20.04.1 | 5.13.0-1027.32~20.04.1 |
| =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2022-29581
- https://ubuntu.com/security/CVE-2022-30594
- https://ubuntu.com/security/notices/USN-5442-1
- https://ubuntu.com/security/notices/USN-5443-1
- https://ubuntu.com/security/notices/USN-5444-1
- https://ubuntu.com/security/notices/USN-5442-2
- https://ubuntu.com/security/notices/LSN-0086-1
- https://ubuntu.com/security/notices/LSN-0089-1
- https://ubuntu.com/security/notices/USN-5465-1
- https://launchpad.net/ubuntu/+source/linux-signed-oracle/5.13.0-1030.35
- https://launchpad.net/ubuntu/+source/linux-meta-oracle/5.13.0.1030.30
- https://launchpad.net/ubuntu/+source/linux-meta-oracle-5.13/5.13.0.1030.35~20.04.1
- https://launchpad.net/ubuntu/+source/linux-signed-oracle-5.13/5.13.0-1030.35~20.04.1
- https://launchpad.net/ubuntu/+source/linux-meta-gcp-5.13/5.13.0.1027.32~20.04.1
- https://launchpad.net/ubuntu/+source/linux-signed-gcp-5.13/5.13.0-1027.32~20.04.1
- https://ubuntu.com/security/notices/USN-5443-2 (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this Linux kernel vulnerability?
The vulnerability ID for this Linux kernel vulnerability is USN-5443-2.
What is the severity of USN-5443-2?
The severity of USN-5443-2 is not specified.
How can a local attacker exploit this vulnerability?
A local attacker can exploit this vulnerability to cause a denial of service (system crash) or execute arbitrary code.
Which versions of Ubuntu are affected by this vulnerability?
Versions 21.10, 20.04, and Ubuntu Ubuntu are affected by this vulnerability.
How do I fix USN-5443-2?
To fix USN-5443-2, update to version 5.13.0-1030.35 for the linux-image-5.13.0-1030-oracle package (for versions 21.10 and 20.04) or update to version 5.13.0-1027.32~20.04.1 for the linux-image-5.13.0-1027-gcp package (for version 20.04).
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