CVE-2004-1440: Buffer Overflow
First published: Fri Dec 31 2004(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PuTTY | =0.48 | |
| PuTTY | =0.49 | |
| PuTTY | =0.50 | |
| PuTTY | =0.51 | |
| PuTTY | =0.52 | |
| PuTTY | =0.53 | |
| PuTTY | =0.53b | |
| PuTTY | =0.54 |
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Reference Links
- http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modpow.html
- http://www.gentoo.org/security/en/glsa/glsa-200408-04.xml
- http://www.securityfocus.com/bid/10850
- http://secunia.com/advisories/12212/
- http://marc.info/?l=bugtraq&m=109167869528138&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16885
Frequently Asked Questions
What is the severity of CVE-2004-1440?
The severity of CVE-2004-1440 is high due to the potential for remote code execution.
How do I fix CVE-2004-1440?
To fix CVE-2004-1440, update PuTTY to version 0.55 or later.
Which versions of PuTTY are affected by CVE-2004-1440?
CVE-2004-1440 affects PuTTY versions 0.48 through 0.54.
What type of vulnerability is CVE-2004-1440?
CVE-2004-1440 is classified as a heap-based buffer overflow vulnerability.
Can CVE-2004-1440 be exploited remotely?
Yes, CVE-2004-1440 can be exploited remotely via specially crafted SSH2 packets.
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- agent/source
- agent/softwarecombine
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- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-historical
- vendor/putty
- canonical/putty
- version/putty/0.48
- version/putty/0.49
- version/putty/0.50
- version/putty/0.51
- version/putty/0.52
- version/putty/0.53
- version/putty/0.53b
- version/putty/0.54