CVE catalog
CVE-2021-41145
ALPINE-CVE-2021-41145
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.65% · Oct 25, 2026
FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. FreeSWITCH prior to version 1.10.7 is susceptible to Denial of Service via SIP flooding. When flooding FreeSWITCH with SIP messages, it was observed that after a number of seconds the process was killed by the operating system due to memory exhaustion. By abusing this vulnerability, an attacker is able to crash any FreeSWITCH instance by flooding it with SIP messages, leading to Denial of Service. The attack does not require authentication and can be carried out over UDP, TCP or TLS. This issue was patched in version 1.10.7.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Alpine | freeswitch | 3.15 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.16 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.17 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.18 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.19 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.20 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.21 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.22 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.23 | 1.10.7-r0 | fixed |
| Alpine | freeswitch | 3.24 | 1.10.7-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Alpine | freeswitch | apk | 3.15 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.16 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.17 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.18 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.19 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.20 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.21 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.22 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.23 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
| Alpine | freeswitch | apk | 3.24 | 1.10.7-r0 | Not reported | ALPINE-CVE-2021-41145 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: