CVE-2019-6256

9.8 criticalEPSS 2.4%

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.

Severity

CVSS 3.0

9.8 critical

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

EPSS: 2.4% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)
CWE: CWE-755
Published: 2019-01-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

debian:debian_linux
live555:live555_media_server

References

https://github.com/rgaufman/live555/issues/19
https://lists.debian.org/debian-lts-announce/2019/02/msg00037.html
https://seclists.org/bugtraq/2019/Mar/22
https://security.gentoo.org/glsa/202005-06
https://www.debian.org/security/2019/dsa-4408

Check your stack JSON