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-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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.0-1029.30

Ecosystem specific

{
    "availability": "No subscription needed",
    "binaries": [
        {
            "linux-image-oem-20.04b": "5.10.0.1029.30",
            "linux-image-oem-20.04": "5.10.0.1029.30",
            "linux-image-5.10.0-1029-oem": "5.10.0-1029.30",
            "linux-image-oem-20.04-edge": "5.10.0.1029.30"
        }
    ]
}