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.
Published 2009-09-18 10:30:01
Updated 2017-09-29 01:34:38
Source Red Hat, Inc.
View at NVD,   CVE.org

Products affected by CVE-2009-1883

Exploit prediction scoring system (EPSS) score for CVE-2009-1883

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-1883

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.4
MEDIUM AV:L/AC:M/Au:N/C:P/I:P/A:P
3.4
6.4
NIST

CWE ids for CVE-2009-1883

  • Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-1883

  • Red Hat 2009-09-22
    This issue did not affect kernel packages as shipped in Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 1. It was addressed in Red Hat Enterprise Linux 4 via https://rhn.redhat.com/errata/RHSA-2009-1438.html . This issue has been rated as having moderate security impact. It is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important or critical impact are addressed. For further information about Errata Support Policy, visit: http://www.redhat.com/security/updates/errata/
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