MGASA-2020-0003 - Updated putty packages fix security vulnerabilities

Publication date: 05 Jan 2020
URL: https://advisories.mageia.org/MGASA-2020-0003.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2019-17068,
     CVE-2019-17069

Updated putty package fixes security vulnerabilities:

Two separate vulnerabilities affecting the obsolete SSH-1 protocol, both
available before host key checking.

Vulnerability in all the SSH client tools (PuTTY, Plink, PSFTP, and PSCP)
if a malicious program can impersonate Pageant.

Crash in GSSAPI / Kerberos key exchange triggered if the server provided
an ordinary SSH host key as part of the exchange.

Insufficient handling of terminal escape sequences, that should delimit
the pasted data in bracketed paste mode (CVE-2019-17068).

Possible information leak caused by SSH-1 disconnection messages
(CVE-2019-17069).

The putty package has been updated to version 0.73, fixing theese issues
and other bugs.

References:
- https://bugs.mageia.org/show_bug.cgi?id=25760
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
- https://lists.opensuse.org/opensuse-updates/2019-08/msg00170.html
- https://lists.opensuse.org/opensuse-updates/2019-10/msg00047.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17068
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17069

SRPMS:
- 7/core/putty-0.73-1.mga7