Read the docs
TI-2011-03587 Aliases CVE-2011-4063GHSA-wxfw-gh9x-v224

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and…

Priority LOW 35CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.

Why it matters now

EPSS 0.0238 83rd percentileScored 2026-11-07
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 · 2

CPEVersionsRoleVendor
cpe:2.3:a:asterisk:open_source:1.8.7:*:*:*:*:*:*:*1.8.7Vulnerableasterisk
cpe:2.3:a:asterisk:open_source:10.0.0:*:*:*:*:*:*:*10.0.0Vulnerableasterisk
  • cpe:2.3:a:asterisk:open_source:1.8.7:*:*:*:*:*:*:* Versions 1.8.7 Vulnerable ·asterisk
  • cpe:2.3:a:asterisk:open_source:10.0.0:*:*:*:*:*:*:* Versions 10.0.0 Vulnerable ·asterisk

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-2011-4063
  2. 2026-10-03 Alias added: GHSA-wxfw-gh9x-v224

References

Advisory 2

  • TI-2008-01239 Multiple buffer overflows in Asterisk Open Source 1.4.x before 1.4.18.1 and 1.4.19-rc3… CVSS 2.0HIGH 7.5
  • TI-2012-01955 Incomplete blacklist vulnerability in main/manager.c in Asterisk Open Source 1.8.x before… CVSS 2.0HIGH 9.0
  • TI-2008-00085 The SIP channel driver in Asterisk Open Source 1.4.x before 1.4.17, Business Edition… CVSS 2.0MEDIUM 5.0
  • TI-2008-01282 Unspecified vulnerability in Asterisk Open Source 1.2.x before 1.2.27, 1.4.x before… CVSS 2.0HIGH 8.8
  • TI-2008-03126 The FWDOWNL firmware-download implementation in Asterisk Open Source 1.0.x, 1.2.x before… CVSS 2.0HIGH 7.8
  • TI-2009-02237 The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x… CVSS 2.0HIGH 7.8
See all 21 →

Sources

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