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Vulnerabilities / CVE-2019-6256

critical

CVE-2019-6256

A Denial of Service issue was discovered in the LIVE555 Streaming Medi ...

Published Modified CWE 755
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

Description

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.

Affected packages and fixed versions

SourcePackageFixed in
debian 14liblivemedia2018.11.26-1
debian 8liblivemedia2014.01.13-1+deb8u2
debian 9liblivemedia2016.11.28-1+deb9u2
ubuntu 16.04-ESMliblivemedia2016.02.09-1ubuntu0.1~esm1
ubuntu 18.04-ESMliblivemedia2018.02.18-1ubuntu0.1~esm1
ubuntu 19.04liblivemedia2018.11.26-1
ubuntu 19.10liblivemedia2018.11.26-1
ubuntu 20.04liblivemedia2018.11.26-1
ubuntu 20.04-ESMliblivemedia2018.11.26-1
ubuntu 20.10liblivemedia2018.11.26-1

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.