CVE-2013-4206
- State
- Published
- Severity
- Not scored
- Published
- Aug 19, 2013
- Updated
- Aug 6, 2024
- Reserved
- Jun 12, 2013
Description
Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- [oss-security] 20130806 CVE request: three additional flaws fixed in putty 0.63mailing-list
- 54533third-party-advisory
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html
- DSA-2736vendor-advisory
- openSUSE-SU-2013:1347vendor-advisory
- 54379third-party-advisory
- http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977
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