Vulnerability in Digium Asterisk
CVE-2016-7551
chain_sip in Asterisk Open Source 11.x before 11.23.1 and 13.x 13.11.1 and Certified Asterisk 11.6 before 11.6-cert15 and 13.8 before 13.8-cert3 allows remote attackers to cause a denial of service (port exhaustion).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.053 (92.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.055 · newest: 0.053 · change: -0.001
Affected products
- Digium Asterisk — versions 11.0.0, 11.0.1, 11.0.2
- Digium Certified Asterisk — versions 11.6, 11.6.0, 13.8
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.debian.org/cgi-bin/bugreport.cgi (Patch, Third Party Advisory, Issue Tracking)
- issues.asterisk.org/jira/browse/ASTERISK-26272 (Patch, Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking)
- downloads.asterisk.org/pub/security/AST-2016-007.html (Mitigation, Vendor Advisory)
- www.debian.org/security/2016/dsa-3700 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-7551?
- CVE-2016-7551 is a high-severity vulnerability in Digium Asterisk, classified under CWE-399. CVSS score: 7.5/10. Published 2017-04-17.
- How severe is CVE-2016-7551?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-7551 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.