USN-5046-1: Linux kernel vulnerabilities
First published: Wed Aug 18 2021(Updated: )
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) Michael Brown discovered that the Xen netback driver in the Linux kernel did not properly handle malformed packets from a network PV frontend, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-28691) It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3564) It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device detach events, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3573) It was discovered that the NFC implementation in the Linux kernel did not properly handle failed connect events leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service. (CVE-2021-3587)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-5.11.0-1016-raspi-nolpae | <5.11.0-1016.17 | 5.11.0-1016.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-1013-azure | <5.11.0-1013.14 | 5.11.0-1013.14 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-31-generic | <5.11.0-31.33 | 5.11.0-31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-virtual | <5.11.0.31.33 | 5.11.0.31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-generic-64k | <5.11.0.31.33 | 5.11.0.31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-generic | <5.11.0.31.33 | 5.11.0.31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-31-generic-lpae | <5.11.0-31.33 | 5.11.0-31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-aws | <5.11.0.1016.17 | 5.11.0.1016.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-1016-oracle | <5.11.0-1016.17 | 5.11.0-1016.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-31-generic-64k | <5.11.0-31.33 | 5.11.0-31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-1014-kvm | <5.11.0-1014.15 | 5.11.0-1014.15 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-1016-aws | <5.11.0-1016.17 | 5.11.0-1016.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-azure | <5.11.0.1013.14 | 5.11.0.1013.14 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-raspi-nolpae | <5.11.0.1016.14 | 5.11.0.1016.14 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-oem-20.04 | <5.11.0.31.33 | 5.11.0.31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-31-lowlatency | <5.11.0-31.33 | 5.11.0-31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-gke | <5.11.0.1017.17 | 5.11.0.1017.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-1017-gcp | <5.11.0-1017.19 | 5.11.0-1017.19 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-1016-raspi | <5.11.0-1016.17 | 5.11.0-1016.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-gcp | <5.11.0.1017.17 | 5.11.0.1017.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-oracle | <5.11.0.1016.17 | 5.11.0.1016.17 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-raspi | <5.11.0.1016.14 | 5.11.0.1016.14 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-kvm | <5.11.0.1014.15 | 5.11.0.1014.15 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-generic-lpae | <5.11.0.31.33 | 5.11.0.31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-lowlatency | <5.11.0.31.33 | 5.11.0.31.33 |
| =21.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-27-lowlatency | <5.11.0-27.29~20.04.1 | 5.11.0-27.29~20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-generic-hwe-20.04 | <5.11.0.27.29~20.04.11 | 5.11.0.27.29~20.04.11 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-generic-lpae-hwe-20.04 | <5.11.0.27.29~20.04.11 | 5.11.0.27.29~20.04.11 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-27-generic | <5.11.0-27.29~20.04.1 | 5.11.0-27.29~20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-virtual-hwe-20.04 | <5.11.0.27.29~20.04.11 | 5.11.0.27.29~20.04.11 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-generic-64k-hwe-20.04 | <5.11.0.27.29~20.04.11 | 5.11.0.27.29~20.04.11 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-27-generic-64k | <5.11.0-27.29~20.04.1 | 5.11.0-27.29~20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-5.11.0-27-generic-lpae | <5.11.0-27.29~20.04.1 | 5.11.0-27.29~20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/linux-image-lowlatency-hwe-20.04 | <5.11.0.27.29~20.04.11 | 5.11.0.27.29~20.04.11 |
| =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2021-0129
- https://ubuntu.com/security/CVE-2020-26558
- https://ubuntu.com/security/CVE-2021-28691
- https://ubuntu.com/security/CVE-2021-3587
- https://ubuntu.com/security/CVE-2021-3564
- https://ubuntu.com/security/CVE-2021-3573
- https://ubuntu.com/security/notices/USN-5017-1
- https://ubuntu.com/security/notices/USN-5018-1
- https://ubuntu.com/security/notices/USN-5050-1
- https://ubuntu.com/security/notices/USN-5299-1
- https://ubuntu.com/security/notices/USN-5343-1
- https://ubuntu.com/security/notices/USN-4989-1
- https://ubuntu.com/security/notices/USN-4989-2
- https://ubuntu.com/security/notices/USN-5015-1
- https://ubuntu.com/security/notices/USN-5044-1
- https://ubuntu.com/security/notices/USN-5045-1
- https://launchpad.net/ubuntu/+source/linux-raspi/5.11.0-1016.17
- https://launchpad.net/ubuntu/+source/linux-signed-azure/5.11.0-1013.14
- https://launchpad.net/ubuntu/+source/linux-signed/5.11.0-31.33
- https://launchpad.net/ubuntu/+source/linux-meta/5.11.0.31.33
- https://launchpad.net/ubuntu/+source/linux/5.11.0-31.33
- https://launchpad.net/ubuntu/+source/linux-meta-aws/5.11.0.1016.17
- https://launchpad.net/ubuntu/+source/linux-signed-oracle/5.11.0-1016.17
- https://launchpad.net/ubuntu/+source/linux-signed-kvm/5.11.0-1014.15
- https://launchpad.net/ubuntu/+source/linux-aws/5.11.0-1016.17
- https://launchpad.net/ubuntu/+source/linux-meta-azure/5.11.0.1013.14
- https://launchpad.net/ubuntu/+source/linux-meta-raspi/5.11.0.1016.14
- https://launchpad.net/ubuntu/+source/linux-meta-gcp/5.11.0.1017.17
- https://launchpad.net/ubuntu/+source/linux-signed-gcp/5.11.0-1017.19
- https://launchpad.net/ubuntu/+source/linux-meta-oracle/5.11.0.1016.17
- https://launchpad.net/ubuntu/+source/linux-meta-kvm/5.11.0.1014.15
- https://launchpad.net/ubuntu/+source/linux-signed-hwe-5.11/5.11.0-27.29~20.04.1
- https://launchpad.net/ubuntu/+source/linux-meta-hwe-5.11/5.11.0.27.29~20.04.11
- https://launchpad.net/ubuntu/+source/linux-hwe-5.11/5.11.0-27.29~20.04.1
- https://ubuntu.com/security/notices/USN-5046-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
- agent/severity
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- agent/softwarecombine
- agent/event
- agent/description
- agent/weakness
- agent/references
- agent/title
- agent/trending
- collector/usn
- source/Ubuntu
- agent/software-canonical-lookup
- agent/tags
- agent/source
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu ubuntu
- version/ubuntu ubuntu/21.04
- version/ubuntu ubuntu/20.04