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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2013-4206 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
http://secunia.com/advisories/54379 Vendor Advisory 
http://secunia.com/advisories/54379 Vendor Advisory 
http://secunia.com/advisories/54533
http://secunia.com/advisories/54533
http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977 Patch 
http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977 Patch 
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html Vendor Advisory 
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html Vendor Advisory 
http://www.debian.org/security/2013/dsa-2736
http://www.debian.org/security/2013/dsa-2736
http://www.openwall.com/lists/oss-security/2013/08/06/11
http://www.openwall.com/lists/oss-security/2013/08/06/11

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer cwe source acceptance level NIST  

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Change History

22 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2013-4206
NVD Published Date:
08/19/2013
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.