Ubuntu 3590-1: Irssi vulnerabilities

    Date06 Mar 2018
    CategoryUbuntu
    6489
    Posted ByAnthony Pell
    Several security issues were fixed in Irssi.
    ==========================================================================
    Ubuntu Security Notice USN-3590-1
    March 06, 2018
    
    irssi vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 17.10
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in Irssi.
    
    Software Description:
    - irssi: terminal based IRC client
    
    Details:
    
    It was discovered that Irssi incorrectly handled certain empty
    nick names. An attacker could possibly use this issue to cause a denial
    of service. (CVE-2018-7050)
    
    It was discovered that Irssi incorrectly handled certain nick names.
    An attacker could possibly use this to access sensitive information.
    (CVE-2018-7051)
    
    It was discovered that Irssi incorrectly handled an increase in the
    number of windows. An attacker could possibly use this issue to cause
    a denial of service. (CVE-2018-7052)
    
    It was discovered that Irssi incorrectly handled certain messages.
    An attacker could possibly use this issue to cause a denial of service
    or execute arbitrary code. This issue only affected Ubuntu 16.04 LTS
    and Ubuntu 17.10. (CVE-2018-7053)
    
    It was discovered that Irssi incorrectly handled certain
    disconnections. An attacker could possibly use this to cause a denial
    of service or execute arbitrary code. This issue only affected Ubuntu
    17.10. (CVE-2018-7054)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 17.10:
      irssi                           1.0.4-1ubuntu2.3
    
    Ubuntu 16.04 LTS:
      irssi                           0.8.19-1ubuntu1.7
    
    Ubuntu 14.04 LTS:
      irssi                           0.8.15-5ubuntu3.5
    
    After a standard system update you need to restart Irssi to make all
    the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3590-1
      CVE-2018-7050, CVE-2018-7051, CVE-2018-7052, CVE-2018-7053,
      CVE-2018-7054, CVE-2018-7073
    
    Package Information:
      https://launchpad.net/ubuntu/+source/irssi/1.0.4-1ubuntu2.3
      https://launchpad.net/ubuntu/+source/irssi/0.8.19-1ubuntu1.7
      https://launchpad.net/ubuntu/+source/irssi/0.8.15-5ubuntu3.5
    
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