CVE-2023-28098
low-risk
Published 2023-03-15
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, a specially crafted Authorization header causes OpenSIPS to crash or behave in an unexpected way due to a bug in the function `parse_param_name()` . This issue was discovered while performing coverage guided fuzzing of the function parse_msg. The AddressSanitizer identified that the issue occurred in the function `q_memchr()` which is being called by the function `parse_param_name()`. This issue may cause erratic program behaviour or a server crash. It affects configurations containing functions that make use of the affected code, such as the function `www_authorize()` . Versions 3.1.7 and 3.2.4 contain a fix.
Do I need to act?
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0.39% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10
Medium
NETWORK
/ HIGH complexity
Affected Products (1)
Opensips
Affected Vendors
References (6)
Third Party Advisory
https://github.com/OpenSIPS/opensips/security/advisories/GHSA-jrqg-vppj-hr2h
Third Party Advisory
https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf
Third Party Advisory
https://github.com/OpenSIPS/opensips/security/advisories/GHSA-jrqg-vppj-hr2h
Third Party Advisory
https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf
24
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal