Improper input validation in Apache Guacamole
CVE-2020-9497
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.008 (52.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Apache Guacamole
- Debian Debian_linux — versions 9.0
- Fedoraproject Fedora — versions 32, 33
- N/a Apache Guacamole — versions Apache Guacamole 1.1.0 and older
Weakness classification (CWE)
References
- security@apache.org (Mailing List, x_refsource_MISC, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (Third Party Advisory, x_refsource_MISC)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2020-9497?
- CVE-2020-9497 is a medium-severity vulnerability in Apache Guacamole, classified under Improper Input Validation. CVSS score: 4.4/10. Published 2020-07-02.
- How severe is CVE-2020-9497?
- Medium severity. CVSS v3 base score is 4.4 out of 10.