// For flags

CVE-2022-44640

Gentoo Linux Security Advisory 202310-06

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

Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).

Heimdal anterior a 7.7.1 permite a atacantes remotos ejecutar código arbitrario debido a un free no válido en el códec ASN.1 utilizado por el Centro de distribución de claves (KDC).

It was discovered that Heimdal incorrectly handled certain SPNEGO tokens. A remote attacker could possibly use this issue to cause a denial of service. Evgeny Legerov discovered that Heimdal incorrectly handled memory when performing certain DES decryption operations. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
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
  • 2022-11-03 CVE Reserved
  • 2022-11-23 CVE Published
  • 2025-04-07 EPSS Updated
  • 2025-04-15 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-415: Double Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Heimdal Project
Search vendor "Heimdal Project"
Heimdal
Search vendor "Heimdal Project" for product "Heimdal"
< 7.7.1
Search vendor "Heimdal Project" for product "Heimdal" and version " < 7.7.1"
-
Affected
Samba
Search vendor "Samba"
Samba
Search vendor "Samba" for product "Samba"
>= 4.15.0 < 4.15.3
Search vendor "Samba" for product "Samba" and version " >= 4.15.0 < 4.15.3"
-
Affected
Samba
Search vendor "Samba"
Samba
Search vendor "Samba" for product "Samba"
>= 4.16.0 < 4.16.8
Search vendor "Samba" for product "Samba" and version " >= 4.16.0 < 4.16.8"
-
Affected
Samba
Search vendor "Samba"
Samba
Search vendor "Samba" for product "Samba"
>= 4.17.0 < 4.17.4
Search vendor "Samba" for product "Samba" and version " >= 4.17.0 < 4.17.4"
-
Affected