CVE-2022-26498

HIGH
Published Apr 15, 20224y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 15, 2022 4y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-400 Uncontrolled Resource Consumption Resource Mgmt

Affected Products 5

VendorProductVersionRange
digiumasterisk*≥16.15.0  –  ≤16.25.1
digiumasterisk*≥18.0  –  <18.11.2
digiumasterisk*≥19.0.0  –  ≤19.3.1
debiandebian_linux10.0any
debiandebian_linux11.0any

References 6

  • packetstormsecurity.com http://packetstormsecurity.com/files/166744/Asterisk-Project-Security-Advisory-AST-2022-001.html
    PatchThird Party AdvisoryVDB Entry
  • packetstormsecurity.com http://packetstormsecurity.com/files/172139/Shannon-Baseband-chatroom-SDP-Attribute-Memory-Corruption.html
  • downloads.asterisk.org https://downloads.asterisk.org/pub/security/
    Vendor Advisory
  • downloads.asterisk.org https://downloads.asterisk.org/pub/security/AST-2022-001.html
    PatchVendor Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
    Mailing ListThird Party Advisory
  • debian.org https://www.debian.org/security/2022/dsa-5285
    Third Party Advisory

Remediation

  • packetstormsecurity.com http://packetstormsecurity.com/files/166744/Asterisk-Project-Security-Advisory-AST-2022-001.html
    PatchThird Party AdvisoryVDB Entry
  • downloads.asterisk.org https://downloads.asterisk.org/pub/security/AST-2022-001.html
    PatchVendor Advisory