Vulnerability Details CVE-2018-20177
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.096
EPSS Ranking 92.4%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html
- http://www.securityfocus.com/bid/106938
- https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1
- https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
- https://security.gentoo.org/glsa/201903-06
- https://www.debian.org/security/2019/dsa-4394
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html
- http://www.securityfocus.com/bid/106938
- https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1
- https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
- https://security.gentoo.org/glsa/201903-06
- https://www.debian.org/security/2019/dsa-4394
Products affected by CVE-2018-20177
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cpe:2.3:a:rdesktop:rdesktop:1.2.0
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cpe:2.3:a:rdesktop:rdesktop:1.3.0
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cpe:2.3:a:rdesktop:rdesktop:1.3.1
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cpe:2.3:a:rdesktop:rdesktop:1.4.0
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cpe:2.3:a:rdesktop:rdesktop:1.4.1
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cpe:2.3:a:rdesktop:rdesktop:1.5.0
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cpe:2.3:a:rdesktop:rdesktop:1.6.0
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cpe:2.3:a:rdesktop:rdesktop:1.7.0
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cpe:2.3:a:rdesktop:rdesktop:1.7.1
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cpe:2.3:a:rdesktop:rdesktop:1.8.0
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cpe:2.3:a:rdesktop:rdesktop:1.8.1
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cpe:2.3:a:rdesktop:rdesktop:1.8.2
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cpe:2.3:a:rdesktop:rdesktop:1.8.3
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cpe:2.3:o:debian:debian_linux:8.0
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cpe:2.3:o:debian:debian_linux:9.0
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cpe:2.3:o:opensuse:backports:sle-15
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cpe:2.3:o:opensuse:leap:15.1