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CVE-2020-4067

Status Candidate

Overview

In coturn before version 4.5.1.3, there is an issue whereby STUN/TURN response buffer is not initialized properly. There is a leak of information between different client connections. One client (an attacker) could use their connection to intelligently query coturn to get interesting bytes in the padding bytes from the connection of another client. This has been fixed in 4.5.1.3.

Related Files

Ubuntu Security Notice USN-4415-1
Posted Jul 6, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4415-1 - Felix Doerre discovered that coTURN response buffer is not initialized properly. An attacker could possibly use this issue to obtain sensitive information. It was discovered that coTURN web server incorrectly handled HTTP POST requests. An attacker could possibly use this issue to cause a denial of service, obtain sensitive information or other unspecified impact. Various other issues were also addressed.

tags | advisory, web, denial of service
systems | linux, ubuntu
advisories | CVE-2020-4067
SHA-256 | 321d1146672c0be1922e159ad05e21957107127cde0fb58973b870f004a8f676
Debian Security Advisory 4711-1
Posted Jun 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4711-1 - Several vulnerabilities were discovered in coturn, a TURN and STUN server for VoIP.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2020-4067, CVE-2020-6061, CVE-2020-6062
SHA-256 | 94e74ee6e965430d2e69c9021feb0e95c097ca0170c9498a6756dfe99f8b5ed7
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