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Unscored USN-4911-1 4 CVEs

linux-oem-5.10 vulnerabilities

Published Apr 13, 2021 · Updated Jun 3, 2026

Summary

It was discovered that the Nouveau GPU driver in the Linux kernel did not
properly handle error conditions in some situations. A local attacker could
use this to cause a denial of service (system crash). (CVE-2020-25639)

Jan Beulich discovered that the Xen netback backend in the Linux kernel did
not properly handle certain error conditions under paravirtualization. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-28038)

It was discovered that the fastrpc driver in the Linux kernel did not
prevent user space applications from sending kernel RPC messages. A local
attacker could possibly use this to gain elevated privileges.
(CVE-2021-28375)

It was discovered that the fuse user space file system implementation in
the Linux kernel did not properly handle bad inodes in some situations. A
local attacker could possibly use this to cause a denial of service.
(CVE-2021-28950)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 20.04 LTS 20.04:LTS linux-oem-5.10 5.10.0-1021.22

Vulnerabilities 4

References

  • report
    https://ubuntu.com/security/CVE-2020-25639
  • report
    https://ubuntu.com/security/CVE-2021-28038
  • report
    https://ubuntu.com/security/CVE-2021-28375
  • report
    https://ubuntu.com/security/CVE-2021-28950