Mageia 2020-0003: putty security update

    Date05 Jan 2020
    44
    Posted ByLinuxSecurity Advisories
    Updated putty package fixes security vulnerabilities: Two separate vulnerabilities affecting the obsolete SSH-1 protocol, both available before host key checking.
    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
    
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