Info

Disclosure

Feb 20, 2005

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Feb 21, 2005

Description

A remote overflow exists in PuTTY. The 'fxp_readdir_recv()' function fails to perform proper bounds checking resulting in an integer overflow. With a specially crafted request, a remote attacker can cause arbitrary code execution resulting in a loss of integrity.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Unknown
Disclosure: OSVDB Verified, Vendor Verified

Solution

Upgrade to version 0.57 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Simon Tatham

PuTTY

0.56

References

Security Tracker: 1013246
SCIP VulDB ID: 1237
Related OSVDB ID: 14003
Secunia Advisory ID: 14333 17214
ISS X-Force ID: 19402 19403
CVE ID: 2005-0467 (see also: NVD)
Other Advisory URL: http://security.gentoo.org/glsa/glsa-200502-28.xml
http://www.idefense.com/application/poi/display?id=201&type=vulnerabilities
Vendor Specific News/Changelog Entry: http://www-1.ibm.com/support/docview.wss?uid=ssg1S1002414
http://www-1.ibm.com/support/docview.wss?uid=ssg1S1002416
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-readdir.html
Vendor URL: http://www.chiark.greenend.org.uk/~sgtatham/putty/
Vendor Specific Advisory URL: http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-readdir.html

Credit

Gael Delalleau -

Direct URL: http://osvdb.org/14002