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TI-2018-13668 Aliases CVE-2018-19278GHSA-47fm-v3pv-gm8p

Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and…

Priority LOW 39CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1 allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a buffer size is supposed to match an expanded length but actually matches a compressed length.

Why it matters now

EPSS 0.03579 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 30

CPEVersionsRoleVendor
cpe:2.3:a:digium:asterisk:15.0.0:*:*:*:*:*:*:*15.0.0VulnerableDigium
cpe:2.3:a:digium:asterisk:15.0.0:b1:*:*:*:*:*:*15.0.0 b1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.0.0:rc1:*:*:*:*:*:*15.0.0 rc1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.1.0:*:*:*:*:*:*:*15.1.0VulnerableDigium
cpe:2.3:a:digium:asterisk:15.1.0:rc1:*:*:*:*:*:*15.1.0 rc1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.1.0:rc2:*:*:*:*:*:*15.1.0 rc2VulnerableDigium
cpe:2.3:a:digium:asterisk:15.1.2:*:*:*:*:*:*:*15.1.2VulnerableDigium
cpe:2.3:a:digium:asterisk:15.1.3:*:*:*:*:*:*:*15.1.3VulnerableDigium
cpe:2.3:a:digium:asterisk:15.1.4:*:*:*:*:*:*:*15.1.4VulnerableDigium
cpe:2.3:a:digium:asterisk:15.1.5:*:*:*:*:*:*:*15.1.5VulnerableDigium
  • cpe:2.3:a:digium:asterisk:15.0.0:*:*:*:*:*:*:* Versions 15.0.0 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.0.0:b1:*:*:*:*:*:* Versions 15.0.0 b1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.0.0:rc1:*:*:*:*:*:* Versions 15.0.0 rc1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.1.0:*:*:*:*:*:*:* Versions 15.1.0 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.1.0:rc1:*:*:*:*:*:* Versions 15.1.0 rc1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.1.0:rc2:*:*:*:*:*:* Versions 15.1.0 rc2 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.1.2:*:*:*:*:*:*:* Versions 15.1.2 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.1.3:*:*:*:*:*:*:* Versions 15.1.3 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.1.4:*:*:*:*:*:*:* Versions 15.1.4 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.1.5:*:*:*:*:*:*:* Versions 15.1.5 Vulnerable ·Digium
Show 20 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:digium:asterisk:15.2.0:rc1:*:*:*:*:*:*15.2.0 rc1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.2.0:rc2:*:*:*:*:*:*15.2.0 rc2VulnerableDigium
cpe:2.3:a:digium:asterisk:15.2.1:*:*:*:*:*:*:*15.2.1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.2.2:*:*:*:*:*:*:*15.2.2VulnerableDigium
cpe:2.3:a:digium:asterisk:15.3.0:*:*:*:*:*:*:*15.3.0VulnerableDigium
cpe:2.3:a:digium:asterisk:15.3.0:rc1:*:*:*:*:*:*15.3.0 rc1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.3.0:rc2:*:*:*:*:*:*15.3.0 rc2VulnerableDigium
cpe:2.3:a:digium:asterisk:15.4.0:*:*:*:*:*:*:*15.4.0VulnerableDigium
cpe:2.3:a:digium:asterisk:15.4.0:rc1:*:*:*:*:*:*15.4.0 rc1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.4.0:rc2:*:*:*:*:*:*15.4.0 rc2VulnerableDigium
cpe:2.3:a:digium:asterisk:15.4.1:*:*:*:*:*:*:*15.4.1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.5.0:*:*:*:*:*:*:*15.5.0VulnerableDigium
cpe:2.3:a:digium:asterisk:15.5.0:rc1:*:*:*:*:*:*15.5.0 rc1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.6.0:*:*:*:*:*:*:*15.6.0VulnerableDigium
cpe:2.3:a:digium:asterisk:15.6.0:rc1:*:*:*:*:*:*15.6.0 rc1VulnerableDigium
cpe:2.3:a:digium:asterisk:15.6.1:*:*:*:*:*:*:*15.6.1VulnerableDigium
cpe:2.3:a:digium:asterisk:16.0.0:*:*:*:*:*:*:*16.0.0VulnerableDigium
cpe:2.3:a:digium:asterisk:16.0.0:rc2:*:*:*:*:*:*16.0.0 rc2VulnerableDigium
cpe:2.3:a:digium:asterisk:16.0.0:rc3:*:*:*:*:*:*16.0.0 rc3VulnerableDigium
cpe:2.3:a:digium:asterisk:16.0.1:rc1:*:*:*:*:*:*16.0.1 rc1VulnerableDigium
  • cpe:2.3:a:digium:asterisk:15.2.0:rc1:*:*:*:*:*:* Versions 15.2.0 rc1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.2.0:rc2:*:*:*:*:*:* Versions 15.2.0 rc2 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.2.1:*:*:*:*:*:*:* Versions 15.2.1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.2.2:*:*:*:*:*:*:* Versions 15.2.2 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.3.0:*:*:*:*:*:*:* Versions 15.3.0 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.3.0:rc1:*:*:*:*:*:* Versions 15.3.0 rc1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.3.0:rc2:*:*:*:*:*:* Versions 15.3.0 rc2 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.4.0:*:*:*:*:*:*:* Versions 15.4.0 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.4.0:rc1:*:*:*:*:*:* Versions 15.4.0 rc1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.4.0:rc2:*:*:*:*:*:* Versions 15.4.0 rc2 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.4.1:*:*:*:*:*:*:* Versions 15.4.1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.5.0:*:*:*:*:*:*:* Versions 15.5.0 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.5.0:rc1:*:*:*:*:*:* Versions 15.5.0 rc1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.6.0:*:*:*:*:*:*:* Versions 15.6.0 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.6.0:rc1:*:*:*:*:*:* Versions 15.6.0 rc1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:15.6.1:*:*:*:*:*:*:* Versions 15.6.1 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:16.0.0:*:*:*:*:*:*:* Versions 16.0.0 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:16.0.0:rc2:*:*:*:*:*:* Versions 16.0.0 rc2 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:16.0.0:rc3:*:*:*:*:*:* Versions 16.0.0 rc3 Vulnerable ·Digium
  • cpe:2.3:a:digium:asterisk:16.0.1:rc1:*:*:*:*:*:* Versions 16.0.1 rc1 Vulnerable ·Digium

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-19278
  2. 2026-10-03 Alias added: GHSA-47fm-v3pv-gm8p

References

Exploit 1

Patch 1

  • TI-2006-05256 Integer overflow in the get_input function in the Skinny channel driver (chan_skinny.c)… CVSS 2.0HIGH 7.5
  • TI-2017-12542 An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older… CVSS 3.0HIGH 7.5
  • TI-2023-27195 Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation CVSS 3.1HIGH 7.5
  • TI-2017-13083 An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older, 15.1.4 and… CVSS 3.0HIGH 7.5
  • TI-2019-13459 An issue was discovered in manager.c in Sangoma Asterisk through 13.x, 16.x, 17.x and… CVSS 3.1HIGH 8.8
  • TI-2018-05283 A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5… CVSS 3.0HIGH 7.5
See all 113 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences