Michael Kaczmarczik discovered a vulnerability in the web interface template editing function of Sympa, a mailing list manager. Owner and listmasters could use this flaw to create or modify arbitrary files in the server with privileges of sympa user or owner view list config files

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Debian Security Advisory DSA-4285-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
September 05, 2018                    https://www.debian.org/security/faq
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Package        : sympa
CVE ID         : CVE-2018-1000550

Michael Kaczmarczik discovered a vulnerability in the web interface
template editing function of Sympa, a mailing list manager. Owner and
listmasters could use this flaw to create or modify arbitrary files in
the server with privileges of sympa user or owner view list config files
even if edit_list.conf prohibits it.

For the stable distribution (stretch), this problem has been fixed in
version 6.2.16~dfsg-3+deb9u1.

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/

Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.