CVE-2018-20177

high-risk
Published 2019-03-15

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.

Do I need to act?

~
5.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Debian Opensuse Rdesktop

References (14)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html
Broken Link http://www.securityfocus.com/bid/106938
Patch https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b...
Mailing List https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
Exploit https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients...
Third Party Advisory https://security.gentoo.org/glsa/201903-06
Third Party Advisory https://www.debian.org/security/2019/dsa-4394
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html
Broken Link http://www.securityfocus.com/bid/106938
Patch https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b...
Mailing List https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
Exploit https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients...
Third Party Advisory https://security.gentoo.org/glsa/201903-06
Third Party Advisory https://www.debian.org/security/2019/dsa-4394
52
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 8/34 · Low
Exposure 12/34 · Low