CVE-2004-1440
High
Description
Multiple heap-based buffer overflows in the modpow function in PuTTY before 0.55 allow (1) remote attackers 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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductPutty
PublishedDec 31, 2004
First seenDec 31, 2004
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| putty putty | 0.48, 0.49, 0.50, 0.51, 0.52, 0.53, 0.53b, 0.54 | — |
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