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TI-2022-23591 Aliases CVE-2022-47517GHSA-c8mq-83h4-gm57

An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19.

Priority HIGH 72CWE-193Published · 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 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-193 and the CVSS impact.

Summary

An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that causes a url_canonize2 heap-based buffer over-read because of an off-by-one error.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01562 75th 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

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

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

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:drachtio:drachtio-server:*:*:*:*:*:*:*:*before 0.8.19VulnerableDrachtio
  • cpe:2.3:a:drachtio:drachtio-server:*:*:*:*:*:*:*:* Versions before 0.8.19 Vulnerable ·Drachtio

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-47517
  2. 2026-10-03 Alias added: GHSA-c8mq-83h4-gm57

References

Exploit 1

Patch 2

  • TI-2022-22432 drachtio-server 0.8.18 has a request-handler.cpp event_cb use-after-free for any request. CVSS 3.1CRITICAL 9.8
  • TI-2022-23590 An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.20. CVSS 3.1HIGH 7.5
  • TI-2022-23589 An issue was discovered in drachtio-server before 0.8.20. CVSS 3.1HIGH 7.5
  • TI-2022-22693 drachtio-server before 0.8.19 has a heap-based buffer over-read via a long Request-URI in an INVITE request. CVSS 3.1CRITICAL 9.1
  • TI-2022-22431 In drachtio-server 0.8.18, /var/log/drachtio has mode 0777 and drachtio.log has mode 0666. CVSS 3.1MEDIUM 5.5

Sources

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