PuTTY Remote SSH2_MSG_DEBUG Buffer Overflow Vulnerability

BID:11549

Info

PuTTY Remote SSH2_MSG_DEBUG Buffer Overflow Vulnerability

Bugtraq ID: 11549
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: Oct 27 2004 12:00AM
Updated: Oct 27 2004 12:00AM
Credit: The individual responsible for the discovery of this issue is currently unknown; the vendor disclosed this issue.
Vulnerable: TortoiseCVS TortoiseCVS 1.8
Simon Tatham PuTTY 0.55
Simon Tatham PuTTY 0.54
Simon Tatham PuTTY 0.53 b
Simon Tatham PuTTY 0.53
Simon Tatham PuTTY 0.52
Simon Tatham PuTTY 0.51
Simon Tatham PuTTY 0.50
Simon Tatham PuTTY 0.49
- Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows NT 4.0
 Simon Tatham PuTTY 0.48
- Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows NT 4.0
 PuTTY for Symbian OS PuTTY for Symbian OS 1.3.1 RC1
PuTTY for Symbian OS PuTTY for Symbian OS 1.3.1
PuTTY for Symbian OS PuTTY for Symbian OS 1.3 beta 4
PuTTY for Symbian OS PuTTY for Symbian OS 1.3 beta 3
PuTTY for Symbian OS PuTTY for Symbian OS 1.3 beta 2
PuTTY for Symbian OS PuTTY for Symbian OS 1.3
PuTTY for Symbian OS PuTTY for Symbian OS 1.2
IBM TotalStorage SAN Volume Controller 2.1
Not Vulnerable: TortoiseCVS TortoiseCVS 1.8.3
Simon Tatham PuTTY 0.56
PuTTY for Symbian OS PuTTY for Symbian OS 1.3.2 RC1

Discussion

PuTTY Remote SSH2_MSG_DEBUG Buffer Overflow Vulnerability

A remote SSH2_MSG_DEBUG buffer overflow vulnerability affects PuTTY. This issue is due to insufficient bounds checking on network data prior to copying the data into process buffers.

An attacker may leverage this issue to execute arbitrary code on a computer running the affected software with the privileges of the user that activated it, facilitating unauthorized access.

Exploit / POC

PuTTY Remote SSH2_MSG_DEBUG Buffer Overflow Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

PuTTY Remote SSH2_MSG_DEBUG Buffer Overflow Vulnerability

Solution:
The vendor has released an upgrade dealing with this issue.

Gentoo has issued an update for the PuTTY package included with Gentoo Linux. Users are advised to upgrade:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/putty-0.56"

TortoiseCVS 1.8.3 is available to address this issue.

PuTTY for Symbian OS 1.3.2 RC1 is available to address this issue.

IBM has released a flash alert with instructions to upgrade to PuTTY version 0.58 in SAN Volume Controller Master Console. Please see the referenced Web flash alert for further information.


Simon Tatham PuTTY 0.48

Simon Tatham PuTTY 0.49

Simon Tatham PuTTY 0.50

Simon Tatham PuTTY 0.51

Simon Tatham PuTTY 0.52

Simon Tatham PuTTY 0.53

Simon Tatham PuTTY 0.53 b

Simon Tatham PuTTY 0.54

Simon Tatham PuTTY 0.55

PuTTY for Symbian OS PuTTY for Symbian OS 1.2

PuTTY for Symbian OS PuTTY for Symbian OS 1.3

PuTTY for Symbian OS PuTTY for Symbian OS 1.3 beta 3

PuTTY for Symbian OS PuTTY for Symbian OS 1.3 beta 4

PuTTY for Symbian OS PuTTY for Symbian OS 1.3 beta 2

PuTTY for Symbian OS PuTTY for Symbian OS 1.3.1

PuTTY for Symbian OS PuTTY for Symbian OS 1.3.1 RC1

TortoiseCVS TortoiseCVS 1.8

References

PuTTY Remote SSH2_MSG_DEBUG Buffer Overflow Vulnerability

References:

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