CVE-2022-26498

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.13%
Vendor Advisory debian.org Vendor Advisory asterisk.org Vendor Advisory asterisk.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://downloads.asterisk.org/pub/security/ vendor advisory
https://downloads.asterisk.org/pub/security/AST-2022-001.html patch vendor advisory
http://packetstormsecurity.com/files/166744/Asterisk-Project-Security-Advisory-AST-2022-001.html patch third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html third party advisory mailing list
https://www.debian.org/security/2022/dsa-5285 third party advisory vendor advisory
http://packetstormsecurity.com/files/172139/Shannon-Baseband-chatroom-SDP-Attribute-Memory-Corruption.html

Frequently Asked Questions

What is the severity of CVE-2022-26498?
CVE-2022-26498 has been scored as a high severity vulnerability.
How to fix CVE-2022-26498?
To fix CVE-2022-26498, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-26498 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-26498 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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