Vulnerability Details : CVE-2020-9498
Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-9498
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-9498
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-9498
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.2
|
MEDIUM | AV:L/AC:H/Au:N/C:C/I:C/A:C |
1.9
|
10.0
|
NIST | |
6.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
NIST |
CWE ids for CVE-2020-9498
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-9498
-
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525
Pulse Security Advisory: SA44525 - 2020-07: Out-of-Cycle Advisory: Multiple Vulnerabilities in Apache Guacamole SoftwareThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/11/msg00010.html
[SECURITY] [DLA 2435-1] guacamole-server security updateMailing List;Third Party Advisory
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https://research.checkpoint.com/2020/apache-guacamole-rce/
Would you like some RCE with your Guacamole? - Check Point ResearchThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVV5K2X4EXSAVUUL7IJ3MUJ3ADWMVSBM/
[SECURITY] Fedora 32 Update: guacamole-server-1.2.0-3.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7@%3Cannounce.apache.org%3E
Re: Apache Software Foundation Security Report: 2020 - Pony MailMailing List;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNS7UHBOFV6JHWH5XOEZTE3BREGRSSQ3/
[SECURITY] Fedora 33 Update: guacamole-server-1.2.0-3.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/r90890afea72a9571d666820b2fe5942a0a5f86be406fa31da3dd0922@%3Cannounce.apache.org%3E
Apache Software Foundation Security Report: 2020 - Pony MailMailing List;Third Party Advisory
-
https://lists.apache.org/thread.html/r26fb170edebff842c74aacdb1333c1338f0e19e5ec7854d72e4680fc@%3Cannounce.apache.org%3E
[SECURITY] CVE-2020-9498: Apache Guacamole: Dangling pointer in RDP static virtual channel handling - Pony MailMailing List;Third Party Advisory
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https://lists.apache.org/thread.html/rff824b38ebd2fddc726b816f0e509696b83b9f78979d0cd021ca623b%40%3Cannounce.guacamole.apache.org%3E
[SECURITY] CVE-2020-9498: Apache Guacamole: Dangling pointer in RDP static virtual channel handling - Pony MailMailing List;Third Party Advisory
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