// For flags

CVE-2023-39321

Panic when processing post-handshake message on QUIC connections in crypto/tls

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

Processing an incomplete post-handshake message for a QUIC connection can cause a panic.

El procesamiento de un mensaje post-handshake incompleto para una conexión QUIC puede causar un estado de pánico.

A flaw was found in Golang. Processing an incomplete post-handshake message for a QUIC connection caused a panic.

Multiple vulnerabilities have been discovered in Go, the worst of which could lead to remote code execution. Versions greater than or equal to 1.20.10 are affected.

*Credits: Marten Seemann
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-07-27 CVE Reserved
  • 2023-09-08 CVE Published
  • 2025-02-13 CVE Updated
  • 2025-06-12 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 >= 1.21.0 < 1.21.1
Search vendor "Golang" for product "Go" and version " >= 1.21.0 < 1.21.1"
-
Affected