Home/CVE/An issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it is possible to download files that are not
CVE

CVE-2022-26498

An issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it is possible to download files that are not

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.

HIGH · CVSS 7.5 EPSS 0.01011
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

4
digium asterisk>= 16.15.0 and <= 16.25.1
digium asterisk>= 18.0 and < 18.11.2
digium asterisk>= 19.0.0 and <= 19.3.1
debian linuxall versions
⚠

Public Exploits & PoCs

2
pocpacketstormsecurity.com · Asterisk-Project-Security-Advisory-AST-2022-001.htmlpacketstormsecurity.com
pocpacketstormsecurity.com · Shannon-Baseband-chatroom-SDP-Attribute-Memory-Corruption...packetstormsecurity.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Apr 2022 · 05:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://downloads.asterisk.org/pub/security/Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2022-001.htmlPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlMailing ListThird Party Advisory
https://www.debian.org/security/2022/dsa-5285Third Party Advisory
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