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High USN-2420-1 4 CVEs

linux vulnerabilities

Published Nov 25, 2014 · Updated Apr 22, 2026

Summary

A flaw was discovered in how the Linux kernel's KVM (Kernel Virtual
Machine) subsystem handles the CR4 control register at VM entry on Intel
processors. A local host OS user can exploit this to cause a denial of
service (kill arbitrary processes, or system disruption) by leveraging
/dev/kvm access. (CVE-2014-3690)

Don Bailey discovered a flaw in the LZO decompress algorithm used by the
Linux kernel. An attacker could exploit this flaw to cause a denial of
service (memory corruption or OOPS). (CVE-2014-4608)

Andy Lutomirski discovered a flaw in how the Linux kernel handles
pivot_root when used with a chroot directory. A local user could exploit
this flaw to cause a denial of service (mount-tree loop). (CVE-2014-7970)

Andy Lutomirski discovered that the Linux kernel was not checking the
CAP_SYS_ADMIN when remounting filesystems to read-only. A local user could
exploit this flaw to cause a denial of service (loss of writability).
(CVE-2014-7975)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS linux 3.13.0-40.69

Vulnerabilities 4

References

  • report
    https://ubuntu.com/security/CVE-2014-3690
  • report
    https://ubuntu.com/security/CVE-2014-4608
  • report
    https://ubuntu.com/security/CVE-2014-7970
  • report
    https://ubuntu.com/security/CVE-2014-7975