CVE-2023-27598 (GCVE-0-2023-27598)

Vulnerability from cvelistv5 – Published: 2023-03-15 20:29 – Updated: 2025-02-25 14:57
VLAI
Title
OpenSIPS has vulnerability in the parse_via() function
Summary
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, sending a malformed `Via` header to OpenSIPS triggers a segmentation fault when the function `calc_tag_suffix` is called. A specially crafted `Via` header, which is deemed correct by the parser, will pass uninitialized strings to the function `MD5StringArray` which leads to the crash. Abuse of this vulnerability leads to Denial of Service due to a crash. Since the uninitialized string points to memory location `0x0`, no further exploitation appears to be possible. No special network privileges are required to perform this attack, as long as the OpenSIPS configuration makes use of functions such as `sl_send_reply` or `sl_gen_totag` that trigger the vulnerable code. This issue has been fixed in versions 3.1.7 and 3.2.4.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-25 14:30 UTC
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7646 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
OpenSIPS opensips Affected: < 3.1.7
Affected: >= 3.2.0, < 3.2.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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