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Unscored USN-4983-1 4 CVEs

linux-oem-5.10 vulnerabilities

Published Jun 3, 2021 · Updated Jun 3, 2026

Summary

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)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 20.04 LTS 20.04:LTS linux-oem-5.10 5.10.0-1029.30

Vulnerabilities 4

References

  • report
    https://ubuntu.com/security/CVE-2021-3501
  • report
    https://ubuntu.com/security/CVE-2021-29155
  • report
    https://ubuntu.com/security/CVE-2021-31829
  • report
    https://ubuntu.com/security/CVE-2021-33200