Critical severity · published Mar 15, 2019
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…
9.8
CVSS
7.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.9% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Backports · Opensuse
sle-15 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
RD
Rdesktop · Rdesktop
through 1.8.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20177
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20177
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/4dca546d04321a610c1835010b5dad85163b65e1
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
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