// For flags

CVE-2024-24790

Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

The various Is methods (IsPrivate, IsLoopback, etc) did not work as expected for IPv4-mapped IPv6 addresses, returning false for addresses which would return true in their traditional IPv4 forms.

Los diversos métodos Is (IsPrivate, IsLoopback, etc.) no funcionaron como se esperaba para las direcciones IPv6 asignadas a IPv4, devolviendo falso para direcciones que devolverían verdadero en sus formas IPv4 tradicionales.

A flaw was found in the Go language standard library net/netip. The method Is*() (IsPrivate(), IsPublic(), etc) doesn't behave properly when working with IPv6 mapped to IPv4 addresses. The unexpected behavior can lead to integrity and confidentiality issues, specifically when these methods are used to control access to resources or data.

It was discovered that the Go net/http module did not properly handle the requests when request\'s headers exceed MaxHeaderBytes. An attacker could possibly use this issue to cause a panic resulting into a denial of service. This issue only affected Go 1.21 in Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that the Go net/http module did not properly validate the subdomain match or exact match of the initial domain. An attacker could possibly use this issue to read sensitive information. This issue only affected Go 1.21 in Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

*Credits: Enze Wang of Alioth (@zer0yu), Jianjun Chen of Zhongguancun Lab (@chenjj)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-01-30 CVE Reserved
  • 2024-06-05 CVE Published
  • 2025-02-13 CVE Updated
  • 2025-04-01 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-115: Misinterpretation of Input
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"
 < 1.21.11
Search vendor "Golang" for product "Go" and version " < 1.21.11"
-
Affected
Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 >= 1.22.0 < 1.22.4
Search vendor "Golang" for product "Go" and version " >= 1.22.0 < 1.22.4"
-
Affected