ArchLinux: 202002-9: thunderbird: multiple issues

    Date17 Feb 2020
    393
    Posted ByLinuxSecurity Advisories
    The package thunderbird before version 68.5.0-1 is vulnerable to multiple issues including arbitrary code execution, cross-site scripting, denial of service and information disclosure.
    Arch Linux Security Advisory ASA-202002-9
    =========================================
    
    Severity: Critical
    Date    : 2020-02-13
    CVE-ID  : CVE-2020-6792 CVE-2020-6793 CVE-2020-6794 CVE-2020-6795
              CVE-2020-6798 CVE-2020-6800
    Package : thunderbird
    Type    : multiple issues
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-1099
    
    Summary
    =======
    
    The package thunderbird before version 68.5.0-1 is vulnerable to
    multiple issues including arbitrary code execution, cross-site
    scripting, denial of service and information disclosure.
    
    Resolution
    ==========
    
    Upgrade to 68.5.0-1.
    
    # pacman -Syu "thunderbird>=68.5.0-1"
    
    The problems have been fixed upstream in version 68.5.0.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    - CVE-2020-6792 (information disclosure)
    
    An information disclosure issue has bee found in Thunderbird before
    68.5. When deriving an Message ID identifier for an email message,
    uninitialized memory was used in addition to the message contents.
    
    - CVE-2020-6793 (information disclosure)
    
    An out-of-bounds read has been found in Thunderbird before 68.5, when
    processing an e-mail message with an ill-formed envelope.
    
    - CVE-2020-6794 (information disclosure)
    
    It has been found that setting a master password post-Thunderbird 52
    does not delete unencrypted previously stored passwords before
    Thunderbird 68.5. If a user saved passwords before Thunderbird 60 and
    then later set a master password, an unencrypted copy of these
    passwords is still accessible. This is because the older stored
    password file was not deleted when the data was copied to a new format
    starting in Thunderbird 60. The new master password is added only on
    the new file. This could allow the exposure of stored password data
    outside of user expectations.
    
    - CVE-2020-6795 (denial of service)
    
    A null-pointer dereference has been found in Thunderbird before 68.5,
    when processing a message that contains multiple S/MIME signatures.
    
    - CVE-2020-6798 (cross-site scripting)
    
    An incorrect parsing of template could result in Javascript injection
    in Firefox before 73.0 and Thunderbird before 68.5. If a