Multiple heap-based buffer overflows in the modpow function in PuTTY prior to 0.55 allow (1) remote malicious users to execute arbitrary code via an SSH2 packet with a base argument that is larger than the mod argument, which causes the modpow function to write memory before the beginning of its buffer, and (2) remote malicious servers to cause a denial of service (client crash) and possibly execute arbitrary code via a large bignum during authentication.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
putty putty 0.53 |
||
putty putty 0.53b |
||
putty putty 0.49 |
||
putty putty 0.50 |
||
putty putty 0.51 |
||
putty putty 0.52 |
||
putty putty 0.48 |
||
putty putty 0.54 |
Vulmon