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
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-2736-1 | putty security update |
EUVD |
EUVD-2013-4111 | 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. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
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Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-06T16:38:01.677Z
Reserved: 2013-06-12T00:00:00
Link: CVE-2013-4206
No data.
Status : Deferred
Published: 2013-08-19T23:55:08.723
Modified: 2025-04-11T00:51:21.963
Link: CVE-2013-4206
No data.
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD