CVE-2021-32558 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Severity

75%

Complexity

39%

Confidentiality

60%

An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

First reported 3 years ago

2021-07-30 14:15:00

Last updated 3 years ago

2021-11-28 23:16:00

Affected Software

Debian Linux 9.0

9.0

References

http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html

20210722 AST-2021-008: Remote crash when using IAX2 channel driver

https://downloads.asterisk.org/pub/security/AST-2021-008.html

https://issues.asterisk.org/jira/browse/ASTERISK-29392

[debian-lts-announce] 20210804 [SECURITY] [DLA 2729-1] asterisk security update

http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html

Patch, Third Party Advisory, VDB Entry

20210722 AST-2021-008: Remote crash when using IAX2 channel driver

Mailing List, Patch, Third Party Advisory

https://downloads.asterisk.org/pub/security/AST-2021-008.html

Patch, Vendor Advisory

https://issues.asterisk.org/jira/browse/ASTERISK-29392

Exploit, Issue Tracking, Patch, Vendor Advisory

[debian-lts-announce] 20210804 [SECURITY] [DLA 2729-1] asterisk security update

Mailing List, Third Party Advisory

DSA-4999

DSA-4999

Third Party Advisory

Stay updated

ExploitPedia is constantly evolving. Sign up to receive a notification when we release additional functionality.

Get in touch

If you'd like to report a bug or have any suggestions for improvements then please do get in touch with us using this form. We will get back to you as soon as we can.