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TI-2023-12674 Aliases CVE-2023-28095

OpenSIPS has vulnerability in the building the local negative replies

Priority MEDIUM 41CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions prior to 3.1.7 and 3.2.4 have a potential issue in `msg_translator.c:2628` which might lead to a server crash. This issue was found while fuzzing the function `build_res_buf_from_sip_req` but could not be reproduced against a running instance of OpenSIPS. This issue could not be exploited against a running instance of OpenSIPS since no public function was found to make use of this vulnerable code. Even in the case of exploitation through unknown vectors, it is highly unlikely that this issue would lead to anything other than Denial of Service. This issue has been fixed in versions 3.1.7 and 3.2.4.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00969 62nd percentileScored 2026-11-07
Fix Fixed opensips (OpenSIPS): 3.1.7, 3.2.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
OpenSIPSopensipsbefore 3.1.7; 3.2.0 to before 3.2.43.1.7, 3.2.4Patch availableCNA
  • opensips VendorOpenSIPS Affected before 3.1.7; 3.2.0 to before 3.2.4 Fixed in 3.1.7, 3.2.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:opensips:opensips:*:*:*:*:*:*:*:*before 3.1.7; 3.2.0 to before 3.2.4VulnerableOpenSIPS
  • cpe:2.3:a:opensips:opensips:*:*:*:*:*:*:*:* Versions before 3.1.7; 3.2.0 to before 3.2.4 Vulnerable ·OpenSIPS

Remediation

  • Fix · CNA opensips (OpenSIPS) Fixed in 3.1.7, 3.2.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-28095

References

Patch 1

Advisory 2

  • TI-2023-12676 OpenSIPS has vulnerability in the Content-Length Parser CVSS 3.1HIGH 7.5
  • TI-2023-12311 OpenSIPS has vulnerability in the codec_delete_XX() functions CVSS 3.1HIGH 7.5
  • TI-2023-12310 OpenSIPS has vulnerability in the codec_delete_XX() functions CVSS 3.1HIGH 7.5
  • TI-2023-12309 OpenSIPS has vulnerability in the parse_to_param() function CVSS 3.1HIGH 7.5
  • TI-2023-12308 OpenSIPS has vulnerability in the parse_via() function CVSS 3.1HIGH 7.5
  • TI-2023-12307 OpenSIPS has vulnerability in the parse_uri() function CVSS 3.1HIGH 7.5
See all 11 →

Sources

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