CVE-2023-27599
What it is
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, when the function `append_hf` handles a SIP message with a malformed To header, a call to the function `abort()` is performed, resulting in a crash. This is due to the following check in `data_lump.c:399` in the function `anchor_lump`. An attacker abusing this vulnerability will crash OpenSIPS leading to Denial of Service. It affects configurations containing functions that make use of the affected code, such as the function `append_hf`. This issue has been fixed in versions 3.1.7 and 3.2.4.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 1.0% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.0% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.0% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Opensips < 3.1.7
- Opensips < 3.2.4
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-27599.md and follow it. Check whether this project is affected by CVE-2023-27599. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/OpenSIPS/opensips/commit/cb56694d290530ac308f44b453c18120b1c1109d
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-qvj2-vqrg-f5jx
- https://github.com/OpenSIPS/opensips/commit/cb56694d290530ac308f44b453c18120b1c1109d
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-qvj2-vqrg-f5jx
References
- https://github.com/OpenSIPS/opensips/commit/cb56694d290530ac308f44b453c18120b1c1109d
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-qvj2-vqrg-f5jx
- https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf
- https://github.com/OpenSIPS/opensips/commit/cb56694d290530ac308f44b453c18120b1c1109d
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-qvj2-vqrg-f5jx
- https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf