Integer Underflow in rdesktop Leads to Memory Corruption and Potential Code Execution
CVE-2018-20180

9.8CRITICAL

Key Information:

Vendor

Rdesktop

Status
Rdesktop
Vendor
CVE Published:
15 March 2019

What is CVE-2018-20180?

Versions of rdesktop up to and including v1.8.3 are susceptible to an Integer Underflow vulnerability. This flaw occurs within the rdpsnddbg_process() function, leading to a Heap-Based Buffer Overflow that results in memory corruption. Due to this vulnerability, attackers may exploit the condition to execute arbitrary code remotely, potentially compromising the affected system.

References

http://www.securityfocus.com/bid/106938
vdb-entryx_refsource_BID
https://github.com/rdesktop/rdesktop/commit/4dca546d04321...
x_refsource_MISC
https://security.gentoo.org/glsa/201903-06
vendor-advisoryx_refsource_GENTOO

EPSS Score

8% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.