Is CVE-2019-17539 in the CISA KEV catalog?

No. CVE-2019-17539 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-17539?

CVE-2019-17539 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-17539?

CVE-2019-17539 has an EPSS score of 2.01% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-17539?

Upgrade ffmpeg on debian 11 to 7:4.2.1-1 or later. Fixes are available for 35 affected products.

CVE & CISA-KEV Catalog

CVE-2019-17539

CRITICALEPSS 79th pctl

9.8

CVSS v3

NVD

Description

In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

ffmpegDebian

Fixed in:7:4.2.1-1CVE-2019-17539

ffmpegUbuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavcodec-extra57Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavcodec-extra58Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavcodec-ffmpeg-extra56Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libavcodec-ffmpeg56Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libavcodec57Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavcodec58Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavdevice-ffmpeg56Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libavdevice57Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavdevice58Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavfilter-extra6Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavfilter-extra7Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavfilter-ffmpeg5Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libavfilter6Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavfilter7Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavformat-ffmpeg56Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libavformat57Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavformat58Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavresample-ffmpeg2Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libavresample3Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavresample4Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libavutil-ffmpeg54Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libavutil55Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libavutil56Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libpostproc-ffmpeg53Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libpostproc54Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libpostproc55Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libswresample-ffmpeg1Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libswresample2Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libswresample3Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

libswscale-ffmpeg3Ubuntu

Fixed in:7:2.8.17-0ubuntu0.1USN-4431-1

libswscale4Ubuntu

Fixed in:7:3.4.8-0ubuntu0.2USN-4431-1

libswscale5Ubuntu

Fixed in:7:4.2.4-1ubuntu0.1USN-4431-1

FFmpegWindows application

Affected:4.0 4.0.5Fixed in:4.0.5Gyan

Affected:3.4.7Fixed in:3.4.7Gyan

Affected:4.1 4.1.5Fixed in:4.1.5Gyan

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

Exploit Intelligence

2.01%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory5

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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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.