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Mageia 7 MGASA-2020-0003: Critical Update for Putty Security Issues

mageia
Calendar Grey January 5, 2020
Dist Mageia Esm H88
Mageia 2020-0004: Enhanced vlc package resolves significant issues within streaming protocols and patches severe security risks.
Updated putty package fixes security vulnerabilities: Two separate vulnerabilities affecting the obsolete SSH-1 protocol, both available before host key checking

Summary

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://www.cve.org/CVERecord?id=CVE-2019-17068

- https://www.cve.org/CVERecord?id=CVE-2019-17069

Topics%20covered

Topics Covered

security advisory information leak buffer overflow SSH protocol putty Mageia host key checking

Resolution

SRPMS

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

Severity
critical
Lowest
Low
Medium
High
Critical

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

Topics%20covered

Topics Covered

security advisory information leak buffer overflow SSH protocol putty Mageia host key checking

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