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No exploitation reportedFix available

CVE-2019-6256

No exploitation reported by the sources we read.

  • Published2019-01-14
  • WeaknessCWE-755

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-01-1408:29CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
9.0= 9.0no fix published
Live555 live555 media server
BranchAffectedFixed in
0.93= 0.93no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • liblivemediaUbuntu:Pro:18.04:LTSall versions · fixed in 2018.02.18-1ubuntu0.1~esm1
  • liblivemediaUbuntu:Pro:16.04:LTSall versions · fixed in 2016.02.09-1ubuntu0.1~esm1
  • liblivemediaDebian:14all versions · fixed in 2018.11.26-1
  • liblivemediaDebian:9all versions · fixed in 2016.11.28-1+deb9u2
  • liblivemediaDebian:8all versions · fixed in 2014.01.13-1+deb8u2
  • live555SUSE:Package Hub 15all versions · fixed in 2018.12.14-bp150.3.3.1
  • live555openSUSE:Leap 15.0all versions · fixed in 2018.12.14-bp150.3.3.1

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2019-01-14
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-j293-2f59-6wr3

Frequently asked questions

What is CVE-2019-6256?

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.

Is CVE-2019-6256 actively exploited?

Active exploitation of CVE-2019-6256 has not been confirmed. Its EPSS score was 2.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-6256?

CVE-2019-6256 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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