USN-5985-1: Linux kernel vulnerabilities
First published: Wed Mar 29 2023(Updated: )
It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-3669) It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs. An attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. (CVE-2022-2196) Gerald Lee discovered that the USB Gadget file system implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-4382) It was discovered that the RNDIS USB driver in the Linux kernel contained an integer overflow vulnerability. A local attacker with physical access could plug in a malicious USB device to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-23559)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-aws | <5.4.0.1099.77 | 5.4.0.1099.77 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-snapdragon-hwe-18.04 | <5.4.0.146.163~18.04.117 | 5.4.0.146.163~18.04.117 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-1099-aws | <5.4.0-1099.107~18.04.1 | 5.4.0-1099.107~18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-oem | <5.4.0.146.163~18.04.117 | 5.4.0.146.163~18.04.117 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-raspi-hwe-18.04 | <5.4.0.1082.79 | 5.4.0.1082.79 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-1098-oracle | <5.4.0-1098.107~18.04.1 | 5.4.0-1098.107~18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-1105-azure | <5.4.0-1105.111~18.04.1 | 5.4.0-1105.111~18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-ibm | <5.4.0.1046.57 | 5.4.0.1046.57 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-oem-osp1 | <5.4.0.146.163~18.04.117 | 5.4.0.146.163~18.04.117 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-generic-hwe-18.04 | <5.4.0.146.163~18.04.117 | 5.4.0.146.163~18.04.117 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-generic-lpae-hwe-18.04 | <5.4.0.146.163~18.04.117 | 5.4.0.146.163~18.04.117 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-azure | <5.4.0.1105.78 | 5.4.0.1105.78 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-1102-gcp | <5.4.0-1102.111~18.04.2 | 5.4.0-1102.111~18.04.2 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-146-generic-lpae | <5.4.0-146.163~18.04.1 | 5.4.0-146.163~18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-virtual-hwe-18.04 | <5.4.0.146.163~18.04.117 | 5.4.0.146.163~18.04.117 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-gcp | <5.4.0.1102.78 | 5.4.0.1102.78 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-oracle | <5.4.0.1098.107~18.04.70 | 5.4.0.1098.107~18.04.70 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-146-generic | <5.4.0-146.163~18.04.1 | 5.4.0-146.163~18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-1046-ibm | <5.4.0-1046.51~18.04.1 | 5.4.0-1046.51~18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-lowlatency-hwe-18.04 | <5.4.0.146.163~18.04.117 | 5.4.0.146.163~18.04.117 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-146-lowlatency | <5.4.0-146.163~18.04.1 | 5.4.0-146.163~18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/linux-image-5.4.0-1082-raspi | <5.4.0-1082.93~18.04.1 | 5.4.0-1082.93~18.04.1 |
| =18.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2023-23559
- https://ubuntu.com/security/CVE-2022-2196
- https://ubuntu.com/security/CVE-2021-3669
- https://ubuntu.com/security/CVE-2022-4382
- https://ubuntu.com/security/notices/USN-5884-1
- https://ubuntu.com/security/notices/USN-5924-1
- https://ubuntu.com/security/notices/USN-5926-1
- https://ubuntu.com/security/notices/USN-5927-1
- https://ubuntu.com/security/notices/USN-5970-1
- https://ubuntu.com/security/notices/USN-5975-1
- https://ubuntu.com/security/notices/USN-5978-1
- https://ubuntu.com/security/notices/USN-5979-1
- https://ubuntu.com/security/notices/USN-5980-1
- https://ubuntu.com/security/notices/USN-5981-1
- https://ubuntu.com/security/notices/USN-5982-1
- https://ubuntu.com/security/notices/USN-5984-1
- https://ubuntu.com/security/notices/USN-5987-1
- https://ubuntu.com/security/notices/USN-5991-1
- https://ubuntu.com/security/notices/USN-6004-1
- https://ubuntu.com/security/notices/USN-6009-1
- https://ubuntu.com/security/notices/USN-6020-1
- https://ubuntu.com/security/notices/USN-6030-1
- https://ubuntu.com/security/notices/USN-6031-1
- https://ubuntu.com/security/notices/USN-6032-1
- https://ubuntu.com/security/notices/USN-6151-1
- https://ubuntu.com/security/notices/USN-5976-1
- https://ubuntu.com/security/notices/USN-5977-1
- https://ubuntu.com/security/notices/USN-6001-1
- https://ubuntu.com/security/notices/USN-6013-1
- https://ubuntu.com/security/notices/USN-6014-1
- https://launchpad.net/ubuntu/+source/linux-meta-aws-5.4/5.4.0.1099.77
- https://launchpad.net/ubuntu/+source/linux-meta-hwe-5.4/5.4.0.146.163~18.04.117
- https://launchpad.net/ubuntu/+source/linux-signed-aws-5.4/5.4.0-1099.107~18.04.1
- https://launchpad.net/ubuntu/+source/linux-meta-raspi-5.4/5.4.0.1082.79
- https://launchpad.net/ubuntu/+source/linux-signed-oracle-5.4/5.4.0-1098.107~18.04.1
- https://launchpad.net/ubuntu/+source/linux-signed-azure-5.4/5.4.0-1105.111~18.04.1
- https://launchpad.net/ubuntu/+source/linux-meta-ibm-5.4/5.4.0.1046.57
- https://launchpad.net/ubuntu/+source/linux-meta-azure-5.4/5.4.0.1105.78
- https://launchpad.net/ubuntu/+source/linux-signed-gcp-5.4/5.4.0-1102.111~18.04.2
- https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-146.163~18.04.1
- https://launchpad.net/ubuntu/+source/linux-meta-gcp-5.4/5.4.0.1102.78
- https://launchpad.net/ubuntu/+source/linux-meta-oracle-5.4/5.4.0.1098.107~18.04.70
- https://launchpad.net/ubuntu/+source/linux-signed-hwe-5.4/5.4.0-146.163~18.04.1
- https://launchpad.net/ubuntu/+source/linux-signed-ibm-5.4/5.4.0-1046.51~18.04.1
- https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1082.93~18.04.1
- https://ubuntu.com/security/notices/USN-5985-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2021-3669?
The severity of CVE-2021-3669 is moderate.
How can CVE-2021-3669 be exploited?
CVE-2021-3669 can be exploited by a local attacker to cause a denial of service by exhausting memory.
Which versions of Ubuntu are affected by CVE-2021-3669?
Ubuntu 18.04 is affected by CVE-2021-3669.
What is the recommended fix for CVE-2021-3669?
To fix CVE-2021-3669, update the linux-image-aws package to version 5.4.0.1099.77 or later.
Where can I find more information about CVE-2021-3669?
You can find more information about CVE-2021-3669 on the Ubuntu Security Advisory page.
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- anchor-related/USN-5975-1
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- anchor-related/USN-5979-1
- anchor-related/USN-5980-1
- anchor-related/USN-5981-1
- anchor-related/USN-5982-1
- anchor-related/USN-5984-1
- anchor-related/USN-5987-1
- anchor-related/USN-5991-1
- anchor-related/USN-6004-1
- anchor-related/USN-6009-1
- anchor-related/USN-6020-1
- anchor-related/USN-6030-1
- anchor-related/USN-6031-1
- anchor-related/USN-6032-1
- anchor-related/USN-6151-1
- anchor-related/USN-5976-1
- anchor-related/USN-5977-1
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