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Vulnerability Details : CVE-2009-1883

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.
Publish Date : 2009-09-18 Last Update Date : 2017-09-28
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- CVSS Scores & Vulnerability Types

CVSS Score
4.4
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 264

- Vendor Statements

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/
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
6.9
AV:L/AC:M/Au:N/C:C/I:C/A:C 2009-06-15 2009-09-15
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-1883 oval:org.opensuse.security:def:20091883 unix
DSA-1929-1 linux-2.6 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:13735 unix
RHSA-2009:1438: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20091438 unix
The z90crypt_unlocked_ioctl function in the z90crypt driver in the Linux kernel 2.6.9 does not perform a capability chec... oval:org.mitre.oval:def:9513 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-1883

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 2.6.9 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2009-1883

http://www.openwall.com/lists/oss-security/2009/09/15/3
MLIST [oss-security] 20090915 Re: CVE-2009-1883 kernel: missing capability check in z90crypt
http://www.ubuntu.com/usn/USN-852-1
UBUNTU USN-852-1
http://www.redhat.com/support/errata/RHSA-2009-1438.html
REDHAT RHSA-2009:1438
https://bugzilla.redhat.com/show_bug.cgi?id=505983 CONFIRM
http://www.openwall.com/lists/oss-security/2009/09/15/1
MLIST [oss-security] 20090915 CVE-2009-1883 kernel: missing capability check in z90crypt
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
SUSE SUSE-SA:2010:013

- Metasploit Modules Related To CVE-2009-1883

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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