DEBIAN-CVE-2004-1440

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Source
https://security-tracker.debian.org/tracker/CVE-2004-1440
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-1440.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2004-1440
Upstream
Published
2004-12-31T05:00:00Z
Modified
2025-09-24T23:51:03.976896Z
Summary
[none]
Details

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

Affected packages

Debian:11 / putty

Package

Name
putty
Purl
pkg:deb/debian/putty?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.56-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / putty

Package

Name
putty
Purl
pkg:deb/debian/putty?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.56-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / putty

Package

Name
putty
Purl
pkg:deb/debian/putty?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.56-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / putty

Package

Name
putty
Purl
pkg:deb/debian/putty?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.56-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}