Sympa 6.2.38 through 6.2.52 allows remote attackers to cause a denial of service (disk consumption from temporary files, and a flood of notifications to listmasters) via a series of requests with malformed parameters.

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.

Javier Moreno discovered a vulnerability in Sympa web interface that can cause denial of service (DoS) attack.

By submitting requests with malformed parameters, this flaw allows to create junk files in Sympa's directory for temporary files. And particularly by tampering token to prevent CSRF, it allows to originate exessive notification messages to listmasters.

Update to sympa 6.2.54 :

  - Fixes CVE-2020-9369

  - See     https://sympa-community.github.io/security/2020-001.html     for details

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
144594	Debian DSA-4818-1 : sympa - security update	Nessus	Debian Local Security Checks	high
136941	FreeBSD : sympa -- Denial of service caused by malformed CSRF token (9908a1cc-35ad-424d-be0b-7e56abd5931a)	Nessus	FreeBSD Local Security Checks	high
134463	Fedora 30 : sympa (2020-bb5aa250c9)	Nessus	Fedora Local Security Checks	high
134459	Fedora 31 : sympa (2020-79516cb689)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2020-9369

high

Tenable Plugins

high

high

high

high