CVE-2009-1883

Severity: medium (CVSS 4.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-09-18 · updated 2026-06-16
Weakness: CWE-264

Description

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.

Affected products

Linux kernel: 2.6.9

References

http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
http://secunia.com/advisories/36759
http://secunia.com/advisories/37105
http://www.openwall.com/lists/oss-security/2009/09/15/1
http://www.openwall.com/lists/oss-security/2009/09/15/3
http://www.redhat.com/support/errata/RHSA-2009-1438.html
http://www.ubuntu.com/usn/USN-852-1
https://bugzilla.redhat.com/show_bug.cgi?id=505983
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9513
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
http://secunia.com/advisories/36759
http://secunia.com/advisories/37105

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