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OpenAdvisories
Unscored USN-5669-2 9 CVEs

linux-hwe, linux-oracle vulnerabilities

Published Oct 10, 2022 · Updated Sep 14, 2026

Ecosystem: Ubuntu

Summary

It was discovered that the SUNRPC RDMA protocol implementation in the Linux
kernel did not properly calculate the header size of a RPC message payload.
A local attacker could use this to expose sensitive information (kernel
memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation
in the Linux kernel did not provide sufficient randomization when
calculating port offsets. An attacker could possibly use this to expose
sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling
implementation of the Linux kernel's Rose X.25 protocol layer, resulting in
use-after-free vulnerabilities. A local attacker could use this to cause a
denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux
kernel did not properly initialize memory pages to be used for shared
communication with the backend. A local attacker could use this to expose
sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the
Linux kernel did not properly initialize memory pages to be used for shared
communication with the backend. A local attacker could use this to expose
sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux
kernel incorrectly shared unrelated data when communicating with certain
backends. A local attacker could use this to cause a denial of service
(guest crash) or expose sensitive information (guest kernel memory).
(CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in
the Linux kernel on ARM platforms contained a race condition in certain
situations. An attacker in a guest VM could use this to cause a denial of
service in the host OS. (CVE-2022-33744)

Fixed packages 2

ReleasePackageFixed in
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-hwe 4.15.0-194.205~16.04.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-oracle 4.15.0-1107.118~16.04.1

Vulnerabilities 9

References

  • report
    https://ubuntu.com/security/CVE-2022-0812
  • report
    https://ubuntu.com/security/CVE-2022-1012
  • report
    https://ubuntu.com/security/CVE-2022-2318
  • report
    https://ubuntu.com/security/CVE-2022-26365
  • report
    https://ubuntu.com/security/CVE-2022-32296
  • report
    https://ubuntu.com/security/CVE-2022-33740
  • report
    https://ubuntu.com/security/CVE-2022-33741
  • report
    https://ubuntu.com/security/CVE-2022-33742
  • report
    https://ubuntu.com/security/CVE-2022-33744