An awl security update has been released for both Debian GNU/Linux 9 and 10 to address a denial of service issue.
DSA 4660-1: awl security update
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Debian Security Advisory DSA-4660-1 security@debian.org
https://www.debian.org/security/ Sebastien Delafond
April 21, 2020 https://www.debian.org/security/faq
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Package : awl
CVE ID : CVE-2020-11728 CVE-2020-11729
Debian Bug : 956650
Andrew Bartlett discovered that awl, DAViCal Andrew's Web Libraries,
did not properly handle session management: this would allow a
malicious user to impersonate other sessions or users.
For the oldstable distribution (stretch), these problems have been fixed
in version 0.57-1+deb9u1.
For the stable distribution (buster), these problems have been fixed in
version 0.60-1+deb10u1.
We recommend that you upgrade your awl packages.
For the detailed security status of awl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/awl
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/