CVE-2023-49786

Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1; as well as certified-asterisk prior to 18.9-cert6; Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when handling DTLS-SRTP for media setup. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:21.0.0:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc3:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc4:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:-:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert10:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert11:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert12:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert3:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert4:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert5:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert6:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert7:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert8:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert9:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert3:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert4:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert5:*:*:*:*:*:*

History

21 Nov 2024, 08:33

Type Values Removed Values Added
References () http://packetstormsecurity.com/files/176251/Asterisk-20.1.0-Denial-Of-Service.html - Exploit, Third Party Advisory, VDB Entry () http://packetstormsecurity.com/files/176251/Asterisk-20.1.0-Denial-Of-Service.html - Exploit, Third Party Advisory, VDB Entry
References () http://seclists.org/fulldisclosure/2023/Dec/24 - Exploit, Mailing List, Third Party Advisory () http://seclists.org/fulldisclosure/2023/Dec/24 - Exploit, Mailing List, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2023/12/15/7 - Exploit, Mailing List () http://www.openwall.com/lists/oss-security/2023/12/15/7 - Exploit, Mailing List
References () https://github.com/EnableSecurity/advisories/tree/master/ES2023-01-asterisk-dtls-hello-race - Exploit () https://github.com/EnableSecurity/advisories/tree/master/ES2023-01-asterisk-dtls-hello-race - Exploit
References () https://github.com/asterisk/asterisk/commit/d7d7764cb07c8a1872804321302ef93bf62cba05 - Patch () https://github.com/asterisk/asterisk/commit/d7d7764cb07c8a1872804321302ef93bf62cba05 - Patch
References () https://github.com/asterisk/asterisk/security/advisories/GHSA-hxj9-xwr8-w8pq - Exploit, Vendor Advisory () https://github.com/asterisk/asterisk/security/advisories/GHSA-hxj9-xwr8-w8pq - Exploit, Vendor Advisory
References () https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html - () https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html -
CVSS v2 : unknown
v3 : 5.9
v2 : unknown
v3 : 7.5

29 Dec 2023, 00:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html -

27 Dec 2023, 18:40

Type Values Removed Values Added
CPE cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert10:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:-:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:21.0.0:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert9:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert4:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert11:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert12:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert3:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert4:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert3:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert8:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert6:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc4:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert5:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert7:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert5:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc2:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc1:*:*:*:*:*:*
cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc3:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.9
First Time Sangoma
Digium asterisk
Sangoma certified Asterisk
Digium
CWE CWE-362
References () https://github.com/asterisk/asterisk/security/advisories/GHSA-hxj9-xwr8-w8pq - () https://github.com/asterisk/asterisk/security/advisories/GHSA-hxj9-xwr8-w8pq - Exploit, Vendor Advisory
References () http://seclists.org/fulldisclosure/2023/Dec/24 - () http://seclists.org/fulldisclosure/2023/Dec/24 - Exploit, Mailing List, Third Party Advisory
References () https://github.com/asterisk/asterisk/commit/d7d7764cb07c8a1872804321302ef93bf62cba05 - () https://github.com/asterisk/asterisk/commit/d7d7764cb07c8a1872804321302ef93bf62cba05 - Patch
References () https://github.com/EnableSecurity/advisories/tree/master/ES2023-01-asterisk-dtls-hello-race - () https://github.com/EnableSecurity/advisories/tree/master/ES2023-01-asterisk-dtls-hello-race - Exploit
References () http://packetstormsecurity.com/files/176251/Asterisk-20.1.0-Denial-Of-Service.html - () http://packetstormsecurity.com/files/176251/Asterisk-20.1.0-Denial-Of-Service.html - Exploit, Third Party Advisory, VDB Entry
References () http://www.openwall.com/lists/oss-security/2023/12/15/7 - () http://www.openwall.com/lists/oss-security/2023/12/15/7 - Exploit, Mailing List

20 Dec 2023, 01:15

Type Values Removed Values Added
References
  • () http://seclists.org/fulldisclosure/2023/Dec/24 -

15 Dec 2023, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-12-14 20:15

Updated : 2024-11-21 08:33


NVD link : CVE-2023-49786

Mitre link : CVE-2023-49786

CVE.ORG link : CVE-2023-49786


JSON object : View

Products Affected

sangoma

  • certified_asterisk

digium

  • asterisk
CWE
CWE-703

Improper Check or Handling of Exceptional Conditions

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')