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CVE-2019-6256

Published: 14 January 2019

A Denial of Service issue was discovered in the LIVE555 Streaming Media libraries as used in Live555 Media Server 0.93. It can cause an RTSPServer crash in handleHTTPCmd_TunnelingPOST, when RTSP-over-HTTP tunneling is supported, via x-sessioncookie HTTP headers in a GET request and a POST request within the same TCP session. This occurs because of a call to an incorrect virtual function pointer in the readSocket function in GroupsockHelper.cpp.

From the Ubuntu Security Team

It was discovered that liveMedia incorrectly handled certain network sessions. An attacker could possibly use this issue to cause a denial of service.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
liblivemedia
Launchpad, Ubuntu, Debian
hirsute Does not exist

kinetic Does not exist

bionic
Released (2018.02.18-1ubuntu0.1~esm1)
Available with Ubuntu Pro
cosmic Ignored
(end of life)
disco
Released (2018.11.26-1)
eoan
Released (2018.11.26-1)
focal
Released (2018.11.26-1)
groovy
Released (2018.11.26-1)
impish Does not exist

jammy Does not exist

lunar Does not exist

trusty Does not exist
(trusty was needed)
upstream
Released (2018.11.26-1)
xenial
Released (2016.02.09-1ubuntu0.1~esm1)
Available with Ubuntu Pro

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H