CVE-2023-27598
Summary
| CVE | CVE-2023-27598 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-03-15 21:15:00 UTC |
| Updated | 2023-03-21 19:14:00 UTC |
| Description | 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. |
Risk And Classification
Problem Types: CWE-908
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Vulnerability in the parse_via() function · Advisory · OpenSIPS/opensips · GitHub | MISC | github.com | |
| [core] fix parse_via() parsing · OpenSIPS/opensips@ab611f7 · GitHub | MISC | github.com | |
| opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf | MISC | opensips.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.