Published: 18/09/2009 Updated: 29/09/2017

CVSS v2 Base Score: 4.4 | Impact Score: 6.4 | Exploitability Score: 3.4

VMScore: 392

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

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.

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linux linux kernel 2.6.9

Solar Designer discovered that the z90crypt driver did not correctly check capabilities A local attacker could exploit this to shut down the device, leading to a denial of service Only affected Ubuntu 606 (CVE-2009-1883) ...

CWE-264 http://www.redhat.com/support/errata/RHSA-2009-1438.html https://bugzilla.redhat.com/show_bug.cgi?id=505983 http://secunia.com/advisories/36759 http://www.openwall.com/lists/oss-security/2009/09/15/1 http://www.openwall.com/lists/oss-security/2009/09/15/3 http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html http://secunia.com/advisories/37105 http://www.ubuntu.com/usn/USN-852-1 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9513 https://usn.ubuntu.com/852-1/https://nvd.nist.gov

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CVE-2009-1883

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