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Alpine Linux: CVE-2021-41145: Missing Release of Memory after Effective Lifetime

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Alpine Linux: CVE-2021-41145: Missing Release of Memory after Effective Lifetime

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
10/25/2021
Created
03/22/2024
Added
03/26/2024
Modified
06/11/2024

Description

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.

Solution(s)

  • alpine-linux-upgrade-freeswitch

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