CVE-2019-17539
CRITICAL
9.8
CVSS Score
Published: October 14, 2019 at 01:09 AM UTC
Updated: June 17, 2026 at 02:24 AM UTC
3 products affected across 3 vendorsDebian LinuxUbuntu LinuxFFMPEG
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%v < 3.4.74.0 ≤ v < 4.0.54.1 ≤ v < 4.1.5
Affected range stops below 3.4.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.0.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670cMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.htmlVendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202003-65Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4431-1/Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2020/dsa-4722CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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