TI-2013-02000 Aliases CVE-2013-2238 GHSA-hhwm-5rv2-8r77

Multiple buffer overflows in the switch_perform_substitution function in switch_regex.c…

LOW 35CWE-119Published 2013-09-30 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Medium
Impact type: Code execution
Confidentiality · integrity · availability: Partial · Partial · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Multiple buffer overflows in the switch_perform_substitution function in switch_regex.c in FreeSWITCH 1.2 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to the index and substituted variables.

Why it matters now

EPSS 0.02708 86th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:freeswitch:freeswitch:1.2:::::::*	1.2	Vulnerable	freeswitch

cpe:2.3:a:freeswitch:freeswitch:1.2:*:*:*:*:*:*:* Versions 1.2 Vulnerable ·freeswitch

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2013-2238
2026-10-03 Alias added: GHSA-hhwm-5rv2-8r77

References

Exploit 1

http://jira.freeswitch.org/browse/FS-5566

Patch 1

[oss-security] 20130703 Re: CVE request: FreeSWITCH regex substitution 3 buffer overflows

TI-2023-28097 FreeSWITCH susceptible to Denial of Service via DTLS Hello packets during call initiation CVSS 3.1HIGH 7.5
TI-2023-20909 Resource allocation without limits in signalwire freeswitch CVSS 3.1HIGH 7.5
TI-2023-20908 FreeSWITCH allows remote users to trigger out of bounds write by offering an ICE candidate with unknown component ID CVSS 3.1HIGH 7.5
TI-2019-14041 FreeSWITCH 1.6.10 through 1.10.1 has a default password in event_socket.conf.xml. CVSS 3.1CRITICAL 9.8
TI-2026-36745 FreeSWITCH: Pre-authentication heap buffer overflow in `mod_verto` HTTP POST body read CVSS 3.1CRITICAL 9.8
TI-2026-36744 FreeSWITCH: Pre-authentication heap buffer overflow in libesl `Content-Length` parsing CVSS 3.1CRITICAL 9.1

See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences