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.
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Remediation
No vendor fix or workaround currently provided.
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Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2004-1437 | 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. |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-08T00:53:23.781Z
Reserved: 2005-02-13T00:00:00.000Z
Link: CVE-2004-1440
No data.
Status : Modified
Published: 2004-12-31T05:00:00.000
Modified: 2026-04-16T00:27:16.627
Link: CVE-2004-1440
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD