CVE-2020-9497

MEDIUM

Apache Guacamole < 1.1.0 - Information Disclosure via RDP Static Virtual Channel Data

Title source: llm

Description

Apache Guacamole 1.1.0 and older do not properly validate datareceived from RDP servers via static virtual channels. If a userconnects to a malicious or compromised RDP server, specially-craftedPDUs could result in disclosure of information within the memory ofthe guacd process handling the connection.

References (11)

Core 11

Core References

Mailing List, Vendor Advisory x_refsource_misc

https://lists.apache.org/thread.html/r65f75d3d65d1af68141f42071ebb27dda24af3e45570e593c1dbd81f%40%3Cannounce.guacamole.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r3f071de70ea1facd3601e0fa894e6cadc960627ee7199437b5a56f7f%40%3Cannounce.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r066543f0565e97b27c0dfe27e93e8a387b99e1e35764000224ed96e7%40%3Cuser.guacamole.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r181b1d5b1acb31cfa69f41b2c86ed3a2cb0b5bc09c2cbd31e9e7c847%40%3Cuser.guacamole.apache.org%3E

Third Party Advisory x_refsource_misc

https://research.checkpoint.com/2020/apache-guacamole-rce/

Third Party Advisory x_refsource_confirm

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2020/11/msg00010.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TVV5K2X4EXSAVUUL7IJ3MUJ3ADWMVSBM/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNS7UHBOFV6JHWH5XOEZTE3BREGRSSQ3/

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r90890afea72a9571d666820b2fe5942a0a5f86be406fa31da3dd0922%40%3Cannounce.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7%40%3Cannounce.apache.org%3E

Scores

CVSS v3 4.4

EPSS 0.0008

EPSS Percentile 23.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

Details

CWE

CWE-20

Status published

Products (4)

apache/guacamole < 1.1.0

debian/debian_linux 9.0

fedoraproject/fedora 32

fedoraproject/fedora 33

Published Jul 02, 2020

Tracked Since Feb 18, 2026