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. Prior to version 1.10.11, when handling DTLS-SRTP for media setup, FreeSWITCH is susceptible to Denial of Service due to a race condition in the hello handshake phase of the DTLS protocol. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. If an attacker manages to send a ClientHello DTLS message with an invalid CipherSuite (such as `TLS_NULL_WITH_NULL_NULL`) to the port on the FreeSWITCH server that is expecting packets from the caller, a DTLS error is generated. This results in the media session being torn down, which is followed by teardown at signaling (SIP) level too. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable FreeSWITCH servers for calls that rely on DTLS-SRTP. To address this vulnerability, upgrade FreeSWITCH to 1.10.11 which includes the security fix. The solution implemented is to drop all packets from addresses that have not been validated by an ICE check.

Уязвимость программного средства реализации сетевой маршрутизации на Unix-подобных системах FRRouting, позволяющая нарушителю вызвать отказ в обслуживании

Уязвимость программного средства реализации сетевой маршрутизации на Unix-подобных системах FRRouting, связанная с неконтролируемым расходом ресурсов, позволяющая нарушителю вызвать отказ в обслуживании

An issue was discovered in FRRouting FRR through 9.0.1. It mishandles malformed MP_REACH_NLRI data, leading to a crash.

An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message without mandatory attributes, e.g., one with only an unknown transit attribute.

An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur when processing a crafted BGP UPDATE message with a MP_UNREACH_NLRI attribute and additional NLRI data (that lacks mandatory path attributes).

An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur when a malformed BGP UPDATE message with an EOR is processed, because the presence of EOR does not lead to a treat-as-withdraw outcome.

Уязвимость плагина Content Synchronization сервера службы каталогов 389 Directory Server, позволяющая нарушителю вызвать отказ в обслуживании

A flaw was found In 389-ds-base. When the Content Synchronization plugin is enabled, an authenticated user can reach a NULL pointer dereference using a specially crafted query. This flaw allows an authenticated attacker to cause a denial of service. This CVE is assigned against an incomplete fix of CVE-2021-3514.

Скорректировать опции в политике Обратный поиск DNS для запросов OpenLDAP

(FR) Поправить англицизм в Разрешения PackageKit: экшена → действия

Опечатка в описании политики "Настройка механизма копирования файлов"

Стилистически неверное описание пункта списка (Только root может запускать -> Только root) для политики Разрешения для /usr/sbin/pppd

Поправить описание политики: /usr/bin/postqueue -> /usr/sbin/postqueue

Опечатка и несогласованное предложение в описании политики

При первом запуске admc сообщение: Тема, указанная в настройках, не найдена