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CVE-2021-37706

Status Candidate

Overview

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim’s network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim’s machine. Users are advised to upgrade as soon as possible. There are no known workarounds.

Related Files

Ubuntu Security Notice USN-6422-2
Posted Oct 24, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6422-2 - It was discovered that Ring incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code. It was discovered that Ring incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-37706, CVE-2021-43303, CVE-2022-21722, CVE-2022-23537, CVE-2022-24763, CVE-2022-39244, CVE-2023-27585
SHA-256 | 259a2cf38720d88c7724b592d8b82e467ba99d2e75f4685b7441266a46273ac4
Ubuntu Security Notice USN-6422-1
Posted Oct 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6422-1 - It was discovered that Ring incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code. It was discovered that Ring incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-37706, CVE-2021-43302, CVE-2021-43303, CVE-2021-43804, CVE-2022-21722, CVE-2022-23537, CVE-2022-23547, CVE-2022-23608, CVE-2022-24763, CVE-2022-24764, CVE-2022-24793, CVE-2022-39244, CVE-2023-27585
SHA-256 | 41140452a02c039396cd3c29ae8d013f08f3585edf5434bbe5feb4a14dcfbdd3
Debian Security Advisory 5285-1
Posted Nov 18, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5285-1 - Multiple security vulnerabilities have been found in Asterisk, an Open Source Private Branch Exchange. Buffer overflows and other programming errors could be exploited for information disclosure or the execution of arbitrary code.

tags | advisory, overflow, arbitrary, vulnerability, info disclosure
systems | linux, debian
advisories | CVE-2021-37706, CVE-2021-43299, CVE-2021-43300, CVE-2021-43301, CVE-2021-43302, CVE-2021-43303, CVE-2021-43804, CVE-2021-43845, CVE-2021-46837, CVE-2022-21722, CVE-2022-21723, CVE-2022-23608, CVE-2022-24763, CVE-2022-24764
SHA-256 | 5954aa3a6292b16c124f88a5565b25ffb1de65f24ab2438dbac72d360d3842cd
Gentoo Linux Security Advisory 202210-37
Posted Nov 1, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202210-37 - Multiple vulnerabilities have been found in PJSIP, the worst of which could result in arbitrary code execution. Versions less than 2.12.1 are affected.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2021-32686, CVE-2021-37706, CVE-2021-41141, CVE-2021-43804, CVE-2021-43845, CVE-2022-21722, CVE-2022-21723, CVE-2022-23608, CVE-2022-24754, CVE-2022-24763, CVE-2022-24764, CVE-2022-24786, CVE-2022-24792, CVE-2022-24793
SHA-256 | 0283ae0c45529cc645d6e34ea884fdbdff80a46da788bbb3271840ecfe2a7e46
Asterisk Project Security Advisory - AST-2022-004
Posted Mar 7, 2022
Authored by Kevin Harwell, Sauw Ming | Site asterisk.org

The header length on incoming STUN messages that contain an ERROR-CODE attribute is not properly checked. This can result in an integer underflow. Note, this requires ICE or WebRTC support to be in use with a malicious remote party.

tags | advisory, remote
advisories | CVE-2021-37706
SHA-256 | b4d958ee6e32f6f622c4ae3b0cd99a1c00dcde4578e8d8eca299633634cfec4c
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