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.

The remote Ubuntu 16.04 ESM / 18.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4853-1 advisory.

    It was discovered that liveMedia incorrectly handled certain network packets. An attacker could possibly     use this issue to execute arbitrary code. (CVE-2018-4013)

    It was discovered that liveMedia incorrectly handled certain network sessions. An attacker could possibly     use this issue to cause a denial of service. (CVE-2019-6256)

    It was discovered that liveMedia incorrectly handled certain RTSP streamings. An attacker could possiby     use this issue to cause a denial of service or other unspecified impact. (CVE-2019-7314)

    It was discovered that liveMedia incorrectly handled certain requests. An attacker could possibly use this     issue to obtain sensitive information. (CVE-2019-9215)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202005-06 (LIVE555 Media Server: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in LIVE555 Media Server.
      Please review the CVE identifiers referenced below for details.
  Impact :

    Please review the referenced CVE identifiers for details.
  Workaround :

    There is no known workaround at this time.

Multiple security issues were discovered in liveMedia, a set of C++ libraries for multimedia streaming which could result in the execution of arbitrary code or denial of service when parsing a malformed RTSP stream.

Multiple vulnerabilities have been discovered in liblivemedia, the LIVE555 RTSP server library :

CVE-2019-6256

liblivemedia servers with RTSP-over-HTTP tunneling enabled are vulnerable to an invalid function pointer dereference. This issue might happen during error handling when processing two GET and POST requests being sent with identical x-sessioncookie within the same TCP session and might be leveraged by remote attackers to cause DoS.

CVE-2019-7314

liblivemedia servers with RTSP-over-HTTP tunneling enabled are affected by a use-after-free vulnerability. This vulnerability might be triggered by remote attackers to cause DoS (server crash) or possibly unspecified other impact.

For Debian 8 'Jessie', these problems have been fixed in version 2014.01.13-1+deb8u2.

We recommend that you upgrade your liblivemedia packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update fixes two security issues in live555 :

  - CVE-2018-4013: Remote code execution vulnerability     (bsc#1114779)

  - CVE-2019-6256: Denial of Service issue with     RTSP-over-HTTP tunneling via x-sessioncookie HTTP     headers (boo#1121892)

This library is statically linked into VLC. However VLC is not affected because it only uses the live555 library to implement the RTSP client.

ID	Name	Product	Family	Severity
183646	Ubuntu 16.04 ESM / 18.04 ESM : liveMedia vulnerabilities (USN-4853-1)	Nessus	Ubuntu Local Security Checks	critical
136636	GLSA-202005-06 : LIVE555 Media Server: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
122933	Debian DSA-4408-1 : liblivemedia - security update	Nessus	Debian Local Security Checks	critical
122453	Debian DLA-1690-1 : liblivemedia security update	Nessus	Debian Local Security Checks	critical
121285	openSUSE Security Update : live555 (openSUSE-2019-58)	Nessus	SuSE Local Security Checks	critical

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CVE-2019-6256

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