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Unscored USN-3880-1 4 CVEs

linux vulnerabilities

Published Feb 4, 2019 · Updated Apr 22, 2026

Summary

It was discovered that the CIFS client implementation in the Linux kernel
did not properly handle setup negotiation during session recovery, leading
to a NULL pointer exception. An attacker could use this to create a
malicious CIFS server that caused a denial of service (client system
crash). (CVE-2018-1066)

Jann Horn discovered that the procfs file system implementation in the
Linux kernel did not properly restrict the ability to inspect the kernel
stack of an arbitrary task. A local attacker could use this to expose
sensitive information. (CVE-2018-17972)

Jann Horn discovered that the mremap() system call in the Linux kernel did
not properly flush the TLB when completing, potentially leaving access to a
physical page after it has been released to the page allocator. A local
attacker could use this to cause a denial of service (system crash), expose
sensitive information, or possibly execute arbitrary code. (CVE-2018-18281)

It was discovered that the socket implementation in the Linux kernel
contained a type confusion error that could lead to memory corruption. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2018-9568)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS linux 3.13.0-165.215

Vulnerabilities 4

References

  • report
    https://ubuntu.com/security/CVE-2018-1066
  • report
    https://ubuntu.com/security/CVE-2018-9568
  • report
    https://ubuntu.com/security/CVE-2018-17972
  • report
    https://ubuntu.com/security/CVE-2018-18281