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Permissions, Privileges, and Access Controls

CVE-2009-1883

Severity Medium
Score 4.4/10

Summary

The z90crypt_unlocked_ioctl function in the z90crypt driver in the Linux kernel 2.6.9 does not perform a capability check for the Z90QUIESCE operation, which allows local users to leverage euid 0 privileges to force a driver outage.

  • MEDIUM
  • LOCAL
  • NONE
  • PARTIAL
  • PARTIAL
  • PARTIAL

CWE-264 - Permissions Privileges and Access Controls

CWE 264 (permissions, privileges, and access controls) is not a weakness in and of itself, rather it is a category of weaknesses related to the management of permissions, privileges, and other security features used to perform access control. If not addressed, the weaknesses in this category allow attackers to gain privileges for an unintended sphere of control, access sensitive information, and execute arbitrary commands.

References

Advisory Timeline

  • Published