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Last updated: 10/25/2014 1:41:32 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-0823

Original release date: 02/07/2007
Last revised: 11/15/2008
Source: US-CERT/NIST

Overview

xterm on Slackware Linux 10.2 stores information that had been displayed for a different user account using the same xterm process, which might allow local users to bypass file permissions and read other users' files, or obtain other sensitive information, by reading the xterm process memory. NOTE: it could be argued that this is an expected consequence of multiple users sharing the same interactive process, in which case this is not a vulnerability.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 1.9 (LOW) (AV:L/AC:M/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information

Vendor Statements (disclaimer)

Official Statement from Red Hat (02/09/2007)
Red Hat does not consider this issue to be a security vulnerability. It is correct and expected behavior for xterm not to zero-fill its scrollback buffer upon reception of terminal clear excape sequence.

References to Advisories, Solutions, and Tools

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External Source: MISC
Name: http://gotfault.wordpress.com/2007/02/01/a-funny-case/
External Source: FULLDISC
Name: 20070201 umount crash and xterm (kind of) information leak!
External Source: OSVDB
Name: 33651

Technical Details

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