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FreeBSD: VID-6190C0CD-B945-11EA-9401-2DCF562DAA69 (CVE-2020-14002): PuTTY -- Release 0.74 fixes two security vulnerabilities

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FreeBSD: VID-6190C0CD-B945-11EA-9401-2DCF562DAA69 (CVE-2020-14002): PuTTY -- Release 0.74 fixes two security vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
06/27/2020
Created
07/01/2020
Added
06/29/2020
Modified
10/20/2020

Description

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From VID-6190C0CD-B945-11EA-9401-2DCF562DAA69:

Simon Tatham reports:

[Release 0.74] fixes the following security issues:

New configuration option to disable PuTTY's default policy of

changing its host key algorithm preferences to prefer keys it

already knows. (There is a theoretical information leak in this

policy.) [CVE-2020-14002]

In some situations an SSH server could cause PuTTY to access freed

mdmory by pretending to accept an SSH key and then refusing the

actual signature. It can only happen if you're using an SSH agent.

Solution(s)

  • freebsd-upgrade-package-putty
  • freebsd-upgrade-package-putty-gtk2
  • freebsd-upgrade-package-putty-nogtk

References

  • CVE-2020-14002

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