Is CVE-2019-6256 in the CISA KEV catalog?

No. CVE-2019-6256 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-6256?

CVE-2019-6256 has a CVSS v3 base score of 9.8 (CRITICAL).

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

CVE-2019-6256 has an EPSS score of 2.41% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-6256?

Upgrade liblivemedia on ubuntu 16.04 to 2016.02.09-1ubuntu0.1~esm1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2019-6256

CRITICALEPSS 82th pctl

9.8

CVSS v3

NVD

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.

CWE-755

How to fix

Remediation Available

liblivemediaUbuntu

Fixed in:2016.02.09-1ubuntu0.1~esm1USN-4853-1

Fixed in:2018.02.18-1ubuntu0.1~esm1USN-4853-1

liblivemedia50Ubuntu

Fixed in:2016.02.09-1ubuntu0.1~esm1USN-4853-1

liblivemedia62Ubuntu

Fixed in:2018.02.18-1ubuntu0.1~esm1USN-4853-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.41%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory3

Other references1

security.gentoo.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.