CVE-2023-27596
Prior to versions 3.1.8 and 3.2.5, OpenSIPS crashes when a malformed SDP body is sent multiple times to an OpenSIPS configuration that makes use of the `stream_process` function.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.8 and 3.2.5, OpenSIPS crashes when a malformed SDP body is sent multiple times to an OpenSIPS configuration that makes use of the `stream_process` function. This issue was discovered during coverage guided fuzzing of the function `codec_delete_except_re`. By abusing this vulnerability, an attacker is able to crash the server. It affects configurations containing functions that rely on the affected code, such as the function `codec_delete_except_re`. This issue has been fixed in version 3.1.8 and 3.2.5.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.74% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- opensips/opensips
- Source
- security-advisories@github.com
References
- https://github.com/OpenSIPS/opensips/commit/dd051f8ed5ae3347fb1d556ced3c97822c9d8450Patch, Third Party Advisory
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-3ghx-j39m-cw4fThird Party Advisory
- https://github.com/OpenSIPS/opensips/commit/dd051f8ed5ae3347fb1d556ced3c97822c9d8450Patch, Third Party Advisory
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-3ghx-j39m-cw4fThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.