Out-of-Bounds Affecting putty package, versions <0.62-9ubuntu0.1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.5% (77th percentile)

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  • Snyk IDSNYK-UBUNTU1210-PUTTY-351040
  • published19 Aug 2013
  • disclosed19 Aug 2013

Introduced: 19 Aug 2013

CVE-2013-4207  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Ubuntu:12.10 putty to version 0.62-9ubuntu0.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream putty package and not the putty package as distributed by Ubuntu. See How to fix? for Ubuntu:12.10 relevant fixed versions and status.

Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206.

CVSS Scores

version 3.1