A sympa security update has been released for Debian GNU/Linux 10 to address several vulnerabilities.

DSA 4818-1: sympa security update

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Debian Security Advisory DSA-4818-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
December 23, 2020   https://www.debian.org/security/faq
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Package : sympa
CVE ID : CVE-2020-9369 CVE-2020-10936 CVE-2020-26932 CVE-2020-29668
Debian Bug : 952428 961491 971904 976020

Several vulnerabilities were discovered in Sympa, a mailing list
manager, which could result in local privilege escalation, denial of
service or unauthorized access via the SOAP API.

Additionally to mitigate CVE-2020-26880 the sympa_newaliases-wrapper is
no longer installed setuid root by default. A new Debconf question is
introduced to allow setuid installations in setups where it is needed.

For the stable distribution (buster), these problems have been fixed in
version 6.2.40~dfsg-1+deb10u1.

We recommend that you upgrade your sympa packages.

For the detailed security status of sympa please refer to its security
tracker page at:
  https://security-tracker.debian.org/tracker/sympa

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/