Vulnerability in Putty
CVE-2004-1440
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.
EPSS: 0.041 (89.7th percentile) — read the EPSS interpretation.
Affected products
- Putty — versions 0.48, 0.49, 0.50
- N/a — versions n/a
Public proof-of-concept exploits
References
- cve@mitre.org (vendor-advisory, Patch, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (Patch, vdb-entry, x_refsource_BID)
- cve@mitre.org (Patch, x_refsource_SECUNIA, third-party-advisory)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (vdb-entry, x_refsource_XF)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ)
Frequently asked questions
- What is CVE-2004-1440?
- CVE-2004-1440 is a vulnerability in Putty. Published 2004-12-31.
- Is CVE-2004-1440 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.