USN-4983-1

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Source

https://ubuntu.com/security/notices/USN-4983-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4983-1.json

JSON Data

https://api.osv.dev/v1/vulns/USN-4983-1

Related

Published

2021-06-03T20:43:59.464917Z

Modified

2021-06-03T20:43:59.464917Z

Summary

linux-oem-5.10 vulnerabilities

Details

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33200)

Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive information. (CVE-2021-29155)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly prevent speculative loads in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-31829)

Reiji Watanabe discovered that the KVM VMX implementation in the Linux kernel did not properly prevent user space from tampering with an array index value, leading to a potential out-of-bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3501)

References

Affected packages

Ubuntu:20.04:LTS / linux-oem-5.10

Package

Name: linux-oem-5.10
Purl: pkg:deb/ubuntu/linux-oem-5.10@5.10.0-1029.30?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.0-1029.30

Affected versions

5.*

5.10.0-1008.9

5.10.0-1011.12

5.10.0-1013.14

5.10.0-1014.15

5.10.0-1016.17

5.10.0-1017.18

5.10.0-1019.20

5.10.0-1021.22

5.10.0-1022.23

5.10.0-1023.24

5.10.0-1025.26

5.10.0-1026.27

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "linux-image-unsigned-5.10.0-1029-oem-dbgsym": "5.10.0-1029.30",
            "linux-image-unsigned-5.10.0-1029-oem": "5.10.0-1029.30",
            "linux-oem-5.10-tools-5.10.0-1029": "5.10.0-1029.30",
            "linux-oem-5.10-tools-host": "5.10.0-1029.30",
            "linux-tools-5.10.0-1029-oem": "5.10.0-1029.30",
            "linux-oem-5.10-headers-5.10.0-1029": "5.10.0-1029.30",
            "linux-buildinfo-5.10.0-1029-oem": "5.10.0-1029.30",
            "linux-modules-5.10.0-1029-oem": "5.10.0-1029.30",
            "linux-headers-5.10.0-1029-oem": "5.10.0-1029.30"
        }
    ]
}