PT-2013-4898 · Simon Tatham · Putty

Published 2013-08-09 · Updated 2024-06-15 · CVE-2013-4207

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions PuTTY versions prior to 0.63

Description A buffer overflow issue exists due to improper handling of an invalid DSA signature during computation of a modular inverse. This can cause a division by zero, triggering the overflow by the bignum functionality, and result in a denial of service (crash) when connecting to a remote SSH server.

Recommendations For versions prior to 0.63, update to version 0.63 or later to resolve the issue.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2013-4207

DSA-2736-1

MGASA-2013-0242

OPENSUSE-SU-2024:10399-1

Affected Products

Putty

References · 23

• http://chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.html · Vendor Advisory
• http://secunia.com/advisories/54379 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2013-4207 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2013-4207 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2013-0242.html · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-4207 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2013-0242 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html · Vendor Advisory
• http://debian.org/security/2013/dsa-2736 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-4207 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:10399-1 · Vendor Advisory
• http://chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped.html · Note
• http://openwall.com/lists/oss-security/2013/08/06/11 · Note
• https://suse.com/security/cve/CVE-2013-4206 · Note
• https://suse.com/security/cve/CVE-2013-4852 · Note