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High USN-6123-1 5 CVEs

linux-oem-6.0 vulnerabilities

Published May 30, 2023 · Updated Jun 3, 2026

Summary

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in
the netfilter subsystem of the Linux kernel when processing batch requests,
leading to a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2023-32233)

Reima Ishii discovered that the nested KVM implementation for Intel x86
processors in the Linux kernel did not properly validate control registers
in certain situations. An attacker in a guest VM could use this to cause a
denial of service (guest crash). (CVE-2023-30456)

It was discovered that the Xircom PCMCIA network device driver in the Linux
kernel did not properly handle device removal events. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2023-1670)

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu
Linux kernel contained a race condition when handling inode locking in some
situations. A local attacker could use this to cause a denial of service
(kernel deadlock). (CVE-2023-2612)

It was discovered that the NTFS file system implementation in the Linux
kernel did not properly handle a loop termination condition, leading to an
out-of-bounds read vulnerability. A local attacker could use this to cause
a denial of service (system crash) or possibly expose sensitive
information. (CVE-2023-26606)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS linux-oem-6.0 6.0.0-1017.17

Vulnerabilities 5

References

  • report
    https://ubuntu.com/security/CVE-2023-1670
  • report
    https://ubuntu.com/security/CVE-2023-2612
  • report
    https://ubuntu.com/security/CVE-2023-26606
  • report
    https://ubuntu.com/security/CVE-2023-30456
  • report
    https://ubuntu.com/security/CVE-2023-32233