USN-4678-1

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Source
https://ubuntu.com/security/notices/USN-4678-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4678-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4678-1
Upstream
Related
Published
2021-01-06T22:27:04Z
Modified
2026-02-10T04:42:00Z
Summary
linux, linux-hwe-5.8, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi vulnerabilities
Details

It was discovered that the AMD Running Average Power Limit (RAPL) driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information. (CVE-2020-12912)

Jann Horn discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations. A local attacker could use this to expose sensitive information or possibly escalate privileges. (CVE-2020-29534)

References

Affected packages

Ubuntu:20.04:LTS / linux-hwe-5.8

Package

Name
linux-hwe-5.8
Purl
pkg:deb/ubuntu/linux-hwe-5.8@5.8.0-34.37~20.04.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.8.0-34.37~20.04.2

Affected versions

5.*
5.8.0-23.24~20.04.1
5.8.0-25.26~20.04.1
5.8.0-28.30~20.04.1
5.8.0-29.31~20.04.1
5.8.0-31.33~20.04.1
5.8.0-33.36~20.04.1

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Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2020-12912",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "low",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2020-29534",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4678-1.json"