// For flags

CVE-2022-26498

Shannon Baseband chatroom SDP Attribute Memory Corruption

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it is possible to download files that are not certificates. These files could be much larger than what one would expect to download, leading to Resource Exhaustion. This is fixed in 16.25.2, 18.11.2, and 19.3.2.

Se ha detectado un problema en Asterisk versiones hasta 19.x. Cuando es usado STIR/SHAKEN, es posible descargar archivos que no son certificados. Estos archivos podían ser mucho más grandes de lo que se esperaba descargar, conllevando a un agotamiento de recursos. Esto ha sido corregido en versiones 16.25.2, 18.11.2 y 19.3.2

Shannon Baseband suffers from a memory corruption vulnerability that occurs when the baseband modem processes SDP when setting up a call. SDP supports an attribute chatroom that allows multiple chat properties to be specified. The baseband software allocates a fixed-size buffer for these types, but does not check that the number of properties specified by the SDP is within this bound. This can lead to memory corruption when processing a chatroom attribute that contains more than 12 format types.

*Credits: N/A
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
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-03-06 CVE Reserved
  • 2022-04-15 CVE Published
  • 2024-07-07 EPSS Updated
  • 2024-08-03 CVE 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
Digium
Search vendor "Digium"
 Asterisk
Search vendor "Digium" for product "Asterisk"
 >= 16.15.0 <= 16.25.1
Search vendor "Digium" for product "Asterisk" and version " >= 16.15.0 <= 16.25.1"
-
Affected
Digium
Search vendor "Digium"
 Asterisk
Search vendor "Digium" for product "Asterisk"
 >= 18.0 < 18.11.2
Search vendor "Digium" for product "Asterisk" and version " >= 18.0 < 18.11.2"
-
Affected
Digium
Search vendor "Digium"
 Asterisk
Search vendor "Digium" for product "Asterisk"
 >= 19.0.0 <= 19.3.1
Search vendor "Digium" for product "Asterisk" and version " >= 19.0.0 <= 19.3.1"
-
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
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected