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.
                
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Affected Vendors & Products
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: redhat
Published: 2013-08-19T23:00:00
Updated: 2024-08-06T16:38:01.677Z
Reserved: 2013-06-12T00:00:00
Link: CVE-2013-4206
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Deferred
Published: 2013-08-19T23:55:08.723
Modified: 2025-04-11T00:51:21.963
Link: CVE-2013-4206
 Redhat
                        Redhat
                    No data.
 ReportizFlow
ReportizFlow