ESB-2020.2585 – [Ubuntu] Sympa: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2585
                     USN-4442-1: Sympa vulnerabilities
                               29 July 2020

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Sympa
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Root Compromise                -- Existing Account            
                   Modify Arbitrary Files         -- Existing Account            
                   Cross-site Scripting           -- Remote with User Interaction
                   Provide Misleading Information -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-10936 CVE-2018-1000671 CVE-2018-1000550

Reference:         ESB-2020.1879
                   ESB-2018.2825
                   ESB-2018.2640

Original Bulletin: 
   https://usn.ubuntu.com/4442-1/

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USN-4442-1: Sympa vulnerabilities
28 July 2020

sympa vulnerabilities
Releases

  o Ubuntu 14.04 ESM

Packages

  o sympa - Modern mailing list manager

Details

Michael Kaczmarczik discovered that Sympa incorrectly handled HTTP
GET/POST requests. An attacker could possibly use this issue to insert,
edit or obtain sensitive information. (CVE-2018-1000550)

It was discovered that Sympa incorrectly handled URL parameters. An
attacker could possibly use this issue to perform XSS attacks.
(CVE-2018-1000671)

Nicolas Chatelain discovered that Sympa incorrectly handled environment
variables. An attacker could possibly use this issue with a setuid
binary and gain root privileges. (CVE-2020-10936)

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 14.04

  o sympa - 6.1.17~dfsg-1ubuntu0.1~esm1

In general, a standard system update will make all the necessary changes.

References

  o CVE-2020-10936
  o CVE-2018-1000550
  o CVE-2018-1000671

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