// For flags

CVE-2022-36227

libarchive: NULL pointer dereference in archive_write.c

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: "In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution."

En libarchive anterior a 3.6.2, el software no busca un error después de llamar a la función calloc que puede regresar con un puntero NULL si la función falla, lo que conduce a una desreferencia del puntero NULL resultante. NOTA: el descubridor cita este comentario CWE-476, pero terceros cuestionan el impacto de la ejecución del código: "En raras circunstancias, cuando NULL es equivalente a la dirección de memoria 0x0 y el código privilegiado puede acceder a ella, entonces es posible escribir o leer la memoria, lo cual puede llevar a la ejecución del código."

A flaw was found in libarchive. A missing check of the return value of the calloc function can cause a NULL pointer dereference in an out-of-memory condition or when a memory allocation limit is reached, resulting in the program linked with libarchive to crash.

*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
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-07-18 CVE Reserved
  • 2022-11-22 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-09-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Libarchive
Search vendor "Libarchive"
 Libarchive
Search vendor "Libarchive" for product "Libarchive"
 >= 3.0.0 < 3.6.2
Search vendor "Libarchive" for product "Libarchive" and version " >= 3.0.0 < 3.6.2"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 37
Search vendor "Fedoraproject" for product "Fedora" and version "37"
-
Affected
Splunk
Search vendor "Splunk"
 Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
 >= 8.2.0 < 8.2.12
Search vendor "Splunk" for product "Universal Forwarder" and version " >= 8.2.0 < 8.2.12"
-
Affected
Splunk
Search vendor "Splunk"
 Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
 >= 9.0.0 < 9.0.6
Search vendor "Splunk" for product "Universal Forwarder" and version " >= 9.0.0 < 9.0.6"
-
Affected
Splunk
Search vendor "Splunk"
 Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
 9.1.0
Search vendor "Splunk" for product "Universal Forwarder" and version "9.1.0"
-
Affected