CVE-2009-1883

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Last Modified: UTC

Description

The CVE Program describes this issue as:

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.

Statement

This issue did not affect kernel packages as shipped in Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 1.

This issue did not affect kernel packages as shipped in Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 1.

Additional information

  • Bugzilla 505983: kernel: missing capability check in z90crypt
  • FAQ: Frequently asked questions about CVE-2009-1883

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v2 Score Breakdown
Red HatNVD

CVSS v2 Base Score

6.9

4.4

Attack Vector

Local

Local

Access Complexity

Medium

Medium

Authentication

None

None

Confidentiality Impact

Complete

Partial

Integrity Impact

Complete

Partial

Availability Impact

Complete

Partial

CVSS v2 Vector

Red Hat: AV:L/AC:M/Au:N/C:C/I:C/A:C

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

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

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