Vulnerability DatabaseCVE-2019-17539
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CVE-2019-17539
Published:October 14, 2019
Updated:May 17, 2026
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.
Related Resources (9)
https://security-tracker.debian.org/tracker/CVE-2019-17539
https://security.gentoo.org/glsa/202003-65
https://usn.ubuntu.com/4431-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-17539
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html
https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c
https://www.debian.org/security/2020/dsa-4722
https://security.alpinelinux.org/vuln/CVE-2019-17539
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
NULL Pointer Dereference
CWE-476
EPSS
Base Score:
0.67