FreeRDP from 3.0.0 before 3.32.0 contains an uncontrolled resource consumption vulnerability in parse_nla_mode_pdu that allows unauthenticated attackers to exhaust server memory. Attackers can complete TLS and stream bytes not beginning with the DER SEQUENCE tag 0x30, causing unbounded receive buffer growth before NLA authentication.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Freerdp Freerdp
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
|
3.0.0
|
3.32.0
|
References 2
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qpfh-m9w6-xf2x
GitHub Security Advisory (GHSA-qpfh-m9w6-xf2x)
https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-unauthenticate…
VulnCheck Advisory: FreeRDP 3.0.0 before 3.32.0 Unauthenticated Memory Exhaustion via NLA Frame Parser