Bug 151297

Summary: CAN-2005-0469 slc_add_reply() Buffer Overflow Vulnerability
Product: Red Hat Enterprise Linux 4 Reporter: Josh Bressers <bressers>
Component: telnetAssignee: Harald Hoyer <harald>
Status: CLOSED ERRATA QA Contact: Ben Levenson <benl>
Severity: high Docs Contact:
Priority: medium    
Version: 4.0CC: security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=important,embargo=20050328,source=vendorsec
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-03-28 19:49:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description Josh Bressers 2005-03-16 19:24:22 UTC
The vulnerability specifically exists in the handling of the LINEMODE
suboptions, in that there is no size check made on the output, which is stored
in a fixed length buffer. By sending a specially constructed reply containing a
large number of SLC (Set Local Character) commands, it is possible to overflow
this buffer with server supplied data.

Comment 1 Josh Bressers 2005-03-16 19:25:38 UTC
This issue also affects RHEL2.1 and RHEL3

Comment 3 Josh Bressers 2005-03-28 18:24:46 UTC
Lifting embargo.

Comment 4 Josh Bressers 2005-03-28 19:49:19 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2005-327.html