An exploitable code execution vulnerability exists in the HTTP packet-parsing functionality of the LIVE555 RTSP server library version 0.92. A specially crafted packet can cause a stack-based buffer overflow, resulting in code execution. An attacker can send a packet to trigger this vulnerability.

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.

  - An exploitable code execution vulnerability exists in the HTTP packet-parsing functionality of the LIVE555     RTSP server library version 0.92. A specially crafted packet can cause a stack-based buffer overflow,     resulting in code execution. An attacker can send a packet to trigger this vulnerability. (CVE-2018-4013)

  - 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. (CVE-2019-6256)

  - liblivemedia in Live555 before 2019.02.03 mishandles the termination of an RTSP stream after RTP/RTCP-     over-RTSP has been set up, which could lead to a Use-After-Free error that causes the RTSP server to crash     (Segmentation fault) or possibly have unspecified other impact. (CVE-2019-7314)

  - In Live555 before 2019.02.27, malformed headers lead to invalid memory access in the     parseAuthorizationHeader function. (CVE-2019-9215)

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.

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.

It was discovered that a buffer overflow in liveMedia, a set of C++ libraries for multimedia streaming could result in the execution of arbitrary code when parsing a malformed RTSP stream.

A stack based buffer overflow vulnerability was found in liblivemedia, the LIVE555 RTSP server library. This issue might be leveraged by remote attackers to cause code execution, by sending a crafted packet.

For Debian 8 'Jessie', this problem has been fixed in version 2014.01.13-1+deb8u1.

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.

Talos reports :

An exploitable code execution vulnerability exists in the HTTP packet-parsing functionality of the LIVE555 RTSP server library. A specially crafted packet can cause a stack-based buffer overflow, resulting in code execution. An attacker can send a packet to trigger this vulnerability.

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
121285	openSUSE Security Update : live555 (openSUSE-2019-58)	Nessus	SuSE Local Security Checks	critical
119124	Debian DSA-4343-1 : liblivemedia - security update	Nessus	Debian Local Security Checks	critical
119054	Debian DLA-1582-1 : liblivemedia security update	Nessus	Debian Local Security Checks	critical
118478	FreeBSD : liveMedia -- potential remote code execution (fa194483-dabd-11e8-bf39-5404a68ad561)	Nessus	FreeBSD Local Security Checks	critical

Detections

Analytics

CVE-2018-4013

critical

Tenable Plugins

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