Buffer underflow vulnerability in PuTTY via a crafted DSA signature| ID: oval:org.secpod.oval:def:16587 | Date: (C)2014-01-23 (M)2023-03-24 |
| Class: VULNERABILITY | Family: windows |
The host is installed with PuTTY before 0.63 and is prone to buffer underflow vulnerability. The flaw is present in the modmul function in sshbn.c in PuTTY, which is not properly handled when performing certain bit-shifting operations during modular multiplication. Successful exploitation allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution.
| Platform: |
| Microsoft Windows Server 2022 |
| Microsoft Windows 11 |
| Microsoft Windows Server 2019 |
| Microsoft Windows Server 2016 |
| Microsoft Windows 2000 |
| Microsoft Windows 7 |
| Microsoft Windows Server 2003 |
| Microsoft Windows Server 2008 |
| Microsoft Windows Server 2008 R2 |
| Microsoft Windows Vista |
| Microsoft Windows XP |
| Microsoft Windows 8 |
| Microsoft Windows Server 2012 |
| Microsoft Windows 10 |
| Microsoft Windows 8.1 |
| Microsoft Windows Server 2012 R2 |
