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critical bugs reported in popular open source pjsip sip and

Critical Bugs Reported in Popular Open Source PJSIP SIP and Media Stack

You are here: Home / General Cyber Security News / Critical Bugs Reported in Popular Open Source PJSIP SIP and Media Stack
March 2, 2022

As numerous as 5 security vulnerabilities have been disclosed in the PJSIP open up-supply multimedia communication library that could be abused by an attacker to result in arbitrary code execution and denial-of-support (DoS) in apps that use the protocol stack.

The weaknesses had been recognized and noted by JFrog’s Security Research group, next which the project maintainers released patches (model 2.12) final week on February 24, 2022.

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PJSIP is an open-resource embedded SIP protocol suite written in C that supports audio, movie, and instantaneous messaging functions for preferred communication platforms these types of as WhatsApp and BlueJeans. It truly is also used by Asterisk, a widely-used non-public branch trade (PBX) switching technique for VoIP networks.

“Buffers utilised in PJSIP usually have minimal dimensions, specifically the ones allotted in the stack or supplied by the application, on the other hand in many locations, we do not verify if our utilization can exceed the measurements,” PJSIP’s developer Sauw Ming noted in an advisory posted on GitHub final thirty day period, a scenario that could final result in buffer overflows.

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The list of flaws is as follows –

  • CVE-2021-43299 (CVSS rating: 8.1) – Stack overflow in PJSUA API when contacting pjsua_player_build()
  • CVE-2021-43300 (CVSS score: 8.1) – Stack overflow in PJSUA API when calling pjsua_recorder_generate()
  • CVE-2021-43301 (CVSS score: 8.1) – Stack overflow in PJSUA API when calling pjsua_playlist_create()
  • CVE-2021-43302 (CVSS rating: 5.9) – Examine out-of-bounds in PJSUA API when contacting pjsua_recorder_make()
  • CVE-2021-43303 (CVSS rating: 5.9) – Buffer overflow in PJSUA API when calling pjsua_connect with_dump()

Productive exploitation of the aforementioned flaws could enable a malicious actor to move attacker-managed arguments to any of the susceptible APIs, main to code execution and a DoS issue, Uriya Yavnieli, JFrog researcher who claimed the flaws, claimed.

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Some pieces of this report are sourced from:
thehackernews.com

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