6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
6.2 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
18.8%
Debian LTS Advisory DLA-2435-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
November 06, 2020 https://wiki.debian.org/LTS
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
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | arm64 | libguac-client-vnc0 | < 0.9.9-2+deb9u1 | libguac-client-vnc0_0.9.9-2+deb9u1_arm64.deb |
Debian | 9 | arm64 | libguac11 | < 0.9.9-2+deb9u1 | libguac11_0.9.9-2+deb9u1_arm64.deb |
Debian | 9 | i386 | guacd | < 0.9.9-2+deb9u1 | guacd_0.9.9-2+deb9u1_i386.deb |
Debian | 9 | armel | libguac-client-telnet0 | < 0.9.9-2+deb9u1 | libguac-client-telnet0_0.9.9-2+deb9u1_armel.deb |
Debian | 9 | armhf | libguac-client-telnet0 | < 0.9.9-2+deb9u1 | libguac-client-telnet0_0.9.9-2+deb9u1_armhf.deb |
Debian | 9 | i386 | libguac-dev | < 0.9.9-2+deb9u1 | libguac-dev_0.9.9-2+deb9u1_i386.deb |
Debian | 9 | armel | libguac-client-ssh0 | < 0.9.9-2+deb9u1 | libguac-client-ssh0_0.9.9-2+deb9u1_armel.deb |
Debian | 9 | armhf | libguac-client-ssh0 | < 0.9.9-2+deb9u1 | libguac-client-ssh0_0.9.9-2+deb9u1_armhf.deb |
Debian | 9 | amd64 | libguac-client-vnc0 | < 0.9.9-2+deb9u1 | libguac-client-vnc0_0.9.9-2+deb9u1_amd64.deb |
Debian | 9 | arm64 | guacd | < 0.9.9-2+deb9u1 | guacd_0.9.9-2+deb9u1_arm64.deb |
6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
6.2 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
18.8%