Denial of service in Digium Asterisk
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | N/A |
| CWE-ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Asterisk Open Source Server applications / Conferencing, Collaboration and VoIP solutions |
| Vendor | Digium (Linux Support Services) |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Resource exhaustion
EUVDB-ID: #VU9523
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to an error when handling malicious input. A remote attacker can send a flood of specially crafted data to trigger a flaw in the chan_skinny (SCCP protocol) channel driver, consume excessive virtual memory on the target system and cause the service to stop processing requests. .
Successful exploitation of the vulnerability results in denial of service.
MitigationThe vulnerability is addressed in the following versions: 13.18.3, 14.7.3, 15.1.3.
Vulnerable software versionsAsterisk Open Source: 11.13.0 - 15.1.0
External linkshttp://downloads.asterisk.org/pub/security/AST-2017-013.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
