Ubuntu 4294-1: OpenSMTPD vulnerabilities

    Date 02 Mar 2020
    129
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in opensmtpd.
    ==========================================================================
    Ubuntu Security Notice USN-4294-1
    March 02, 2020
    
    OpenSMTPD vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    
    Summary:
    
    Several security issues were fixed in opensmtpd.
    
    Software Description:
    - opensmtpd: secure, reliable, lean, and easy-to configure SMTP server
    
    Details:
    
    It was discovered that OpenSMTPD mishandled certain input. A remote,
    unauthenticated attacker could use this vulnerability to execute arbitrary
    shell commands as any non-root user. (CVE-2020-8794)
    
    It was discovered that OpenSMTPD did not properly handle hardlinks under
    certain conditions. An unprivileged local attacker could read the first
    line of any file on the filesystem. (CVE-2020-8793)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.10:
      opensmtpd                       6.0.3p1-6ubuntu0.2
    
    Ubuntu 18.04 LTS:
      opensmtpd                       6.0.3p1-1ubuntu0.2
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4294-1
      CVE-2020-8793, CVE-2020-8794
    
    Package Information:
      https://launchpad.net/ubuntu/+source/opensmtpd/6.0.3p1-6ubuntu0.2
      https://launchpad.net/ubuntu/+source/opensmtpd/6.0.3p1-1ubuntu0.2
    
    

    LinuxSecurity Poll

    What do you think of the LinuxSecurity Privacy news articles?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/25-what-do-you-think-of-the-linuxsecurity-privacy-news-articles?task=poll.vote&format=json
    25
    radio
    [{"id":"90","title":"Love them!","votes":"96","type":"x","order":"1","pct":80,"resources":[]},{"id":"91","title":"I'm indifferent","votes":"18","type":"x","order":"2","pct":15,"resources":[]},{"id":"92","title":"Not interested in this topic","votes":"6","type":"x","order":"3","pct":5,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
    bottom 200

    Advisories

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.