Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.

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Source ID Title
Debian DSA Debian DSA DSA-2736-1 putty security update
EUVD EUVD EUVD-2013-4697 Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T16:59:40.996Z

Reserved: 2013-07-16T00:00:00.000Z

Link: CVE-2013-4852

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2013-08-19T23:55:09.077

Modified: 2026-04-29T01:13:23.040

Link: CVE-2013-4852

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses