Buffer overflow in Freeswitch Sofia-Sip
CVE-2023-32307
Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. Referring to [GHSA-8599-x7rq-fr54](https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-8599-x7rq-fr54), several other potential heap-over-flow and integer-overflow in stun_parse_attr_error_code and stun_parse_attr_uint32 were found because the lack of attributes length check when Sofia-SIP handles STUN packets. The previous patch of [GHSA-8599-x7rq-fr54](https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-8599-x7rq-fr54) fixed the vulnerability when attr_type did not match the enum value, but there are also vulnerabilities in the handling of other valid cases. The OOB read and integer-overflow made by attacker may lead to crash, high consumption of memory or even other more serious consequences. These issue have been addressed in version 1.13.15. Users are advised to upgrade.
Vulnerability class: Buffer Overflow
EPSS: 0.011 (61.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Freeswitch Sofia-sip — versions < 1.13.15
- Signalwire Sofia-sip
- Debian Debian_linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Mailing List, Third Party Advisory)
- security-advisories@github.com
- security-advisories@github.com
Frequently asked questions
- What is CVE-2023-32307?
- CVE-2023-32307 is a high-severity vulnerability in Freeswitch Sofia-Sip, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2023-05-26.
- How severe is CVE-2023-32307?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-32307 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.