USN-5046-1

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Source
https://ubuntu.com/security/notices/USN-5046-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/USN-5046-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5046-1
Related
Published
2021-08-18T17:29:24.382312Z
Modified
2021-08-18T17:29:24.382312Z
Summary
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.11, linux-kvm, linux-oracle, linux-raspi vulnerabilities
Details

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)

References

Affected packages

Ubuntu:20.04:LTS / linux-hwe-5.11

Package

Name
linux-hwe-5.11

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.11.0-27.29~20.04.1

Ecosystem specific

{
    "availability": "No subscription needed",
    "binaries": [
        {
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            "linux-hwe-5.11-tools-host": "5.11.0-27.29~20.04.1",
            "linux-headers-lowlatency-hwe-20.04-edge": "5.11.0.27.29~20.04.11",
            "linux-cloud-tools-virtual-hwe-20.04-edge": "5.11.0.27.29~20.04.11",
            "linux-tools-5.11.0-27-lowlatency": "5.11.0-27.29~20.04.1",
            "linux-image-unsigned-5.11.0-27-generic-64k": "5.11.0-27.29~20.04.1",
            "linux-image-generic-lpae-hwe-20.04": "5.11.0.27.29~20.04.11",
            "linux-headers-generic-hwe-20.04": "5.11.0.27.29~20.04.11",
            "linux-headers-5.11.0-27-generic-64k": "5.11.0-27.29~20.04.1",
            "linux-hwe-5.11-source-5.11.0": "5.11.0-27.29~20.04.1",
            "linux-image-generic-hwe-20.04": "5.11.0.27.29~20.04.11",
            "linux-tools-generic-hwe-20.04": "5.11.0.27.29~20.04.11",
            "linux-image-5.11.0-27-lowlatency": "5.11.0-27.29~20.04.1",
            "linux-image-generic-64k-hwe-20.04": "5.11.0.27.29~20.04.11",
            "linux-modules-5.11.0-27-generic-lpae": "5.11.0-27.29~20.04.1",
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            "linux-hwe-5.11-cloud-tools-5.11.0-27": "5.11.0-27.29~20.04.1",
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            "linux-headers-generic-hwe-20.04-edge": "5.11.0.27.29~20.04.11",
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            "linux-image-virtual-hwe-20.04-edge": "5.11.0.27.29~20.04.11",
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            "linux-lowlatency-hwe-20.04-edge": "5.11.0.27.29~20.04.11"
        }
    ]
}