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CVE-2020-9498: Improper Restriction of Operations within the Bounds of a Memory Buffer

July 2, 2020 (updated July 21, 2021)

Apache Guacamole mishandles pointers involved in processing data received via RDP static virtual channels. If a user connects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process.

References

  • nvd.nist.gov/vuln/detail/CVE-2020-9498

Code Behaviors & Features

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Affected versions

All versions up to 1.1.0

Fixed versions

  • 1.3.0

Solution

Upgrade to version 1.3.0 or above.

Impact 6.7 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

Source file

maven/org.apache.guacamole/guacamole-common/CVE-2020-9498.yml

Spotted a mistake? Edit the file on GitLab.

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