What’s Vulnerable › Vulnerabilities

CVE-2023-27597: OpenSIPS has vulnerability in the parse_uri() function

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-15 · updated 2026-06-17
• Weakness: CWE-20

Description

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.8 and 3.2.5, when a specially crafted SIP message is processed by the function `rewrite_ruri`, a crash occurs due to a segmentation fault. This issue causes the server to crash. It affects configurations containing functions that make use of the affected code, such as the function `setport`. This issue has been fixed in version 3.1.8 and 3.2.5.

Affected products

• opensips: before 3.1.8; from 3.2.0 before 3.2.5 — fixed in 3.1.8, 3.2.5

How to fix

Upgrade to a fixed version: opensips 3.1.8, 3.2.5. Check the vendor advisory for mitigations.

References

• https://github.com/OpenSIPS/opensips/commit/b2dffe4b5cd81182c9c8eabb6c96aac96c7acfe3
• https://github.com/OpenSIPS/opensips/security/advisories/GHSA-358f-935m-7p9c
• https://github.com/OpenSIPS/opensips/commit/b2dffe4b5cd81182c9c8eabb6c96aac96c7acfe3
• https://github.com/OpenSIPS/opensips/security/advisories/GHSA-358f-935m-7p9c

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