Debian: DSA-4611-1: opensmtpd security update

    Date 29 Jan 2020
    621
    Posted By LinuxSecurity Advisories
    Qualys discovered that the OpenSMTPD SMTP server performed insufficient validation of email addresses which could result in the execution of arbitrary commands as root. In addition this update fixes a denial of service by triggering an opportunistic TLS downgrade.
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    Debian Security Advisory DSA-4611-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                       Moritz Muehlenhoff
    January 29, 2020                      https://www.debian.org/security/faq
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    Package        : opensmtpd
    CVE ID         : CVE-2020-7247
    Debian Bug     : 950121
    
    Qualys discovered that the OpenSMTPD SMTP server performed insufficient
    validation of email addresses which could result in the execution of
    arbitrary commands as root. In addition this update fixes a denial of
    service by triggering an opportunistic TLS downgrade.
    
    For the oldstable distribution (stretch), these problems have been fixed
    in version 6.0.2p1-2+deb9u2.
    
    For the stable distribution (buster), these problems have been fixed in
    version 6.0.3p1-5+deb10u3. This update also includes non-security
    bugfixes which were already lined up for the Buster 10.3 point release.
    
    We recommend that you upgrade your opensmtpd packages.
    
    For the detailed security status of opensmtpd please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/opensmtpd
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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