[SECURITY] [DLA 2435-1] guacamole-server security update
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Debian LTS Advisory DLA-2435-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Markus Koschany
November 06, 2020 https://wiki.debian.org/LTS
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Package : guacamole-server
Version : 0.9.9-2+deb9u1
CVE ID : CVE-2020-9497 CVE-2020-9498
Debian Bug : 964195
The server component of Apache Guacamole, a remote desktop gateway,
did not properly validate data received from RDP servers. This could
result
in information disclosure or even the execution of arbitrary code.
CVE-2020-9497
Apache Guacamole does not properly validate data received from RDP
servers via static virtual channels. If a user connects to a
malicious or compromised RDP server, specially-crafted PDUs could
result in disclosure of information within the memory of the guacd
process handling the connection.
CVE-2020-9498
Apache Guacamole may mishandle pointers involved in processing data
received via RDP static virtual channels. If a user connects to a
malicious or compromised RDP server, a series of specially-crafted
PDUs could result in memory corruption, possibly allowing arbitrary
code to be executed with the privileges of the running guacd
process.
For Debian 9 stretch, these problems have been fixed in version
0.9.9-2+deb9u1.
We recommend that you upgrade your guacamole-server packages.
For the detailed security status of guacamole-server please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/guacamole-server
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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