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CVE-2018-20177

Good to know:

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Date: March 15, 2019

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.

Language: C

Severity Score

Related Resources (12)

https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
https://security-tracker.debian.org/tracker/CVE-2018-20177
https://nvd.nist.gov/vuln/detail/CVE-2018-20177
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
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-20177
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://access.redhat.com/security/cve/CVE-2018-20177
https://www.mend.io/vulnerability-database/CVE-2018-20177

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Out-of-bounds Write

CWE-787

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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