Security readout for executives and security teams
Plain-English summary
CVE-2019-14442 is a denial-of-service flaw in Libav 12.3. A specially crafted media file can make Libav hang in an infinite seek loop and consume 100% CPU, potentially disrupting services that automatically inspect, transcode, or process uploaded media.
Executive priority
Treat as a service-availability risk, not a data-theft issue based on available evidence. Prioritize internet-facing or automated media-processing services first, especially where a CPU-bound worker can affect customer-facing availability.
Technical view
The issue is in mpc8_read_header in libavformat/mpc8.c. During MPC8 header parsing, malformed input can trigger an avio_seek infinite loop. The provided sources identify CPU exhaustion and hang behavior, but do not provide CVSS, CWE, or broad affected-version detail beyond Libav 12.3.
Likely exposure
Exposure is most likely where Libav processes untrusted or user-supplied media files, such as upload pipelines, media conversion jobs, scanners, or preview generation. Systems that do not use Libav, or only process trusted media, have lower practical exposure.
Exploitation context
The provided sources describe crafted-file denial of service. There is no KEV listing and no provided source states active exploitation. Evidence is limited to the CVE description, Libav bug reference, and Debian LTS security update.
Researcher notes
The public bundle lacks CVSS, CWE, detailed fixed commits, and complete version ranges. Avoid assuming FFmpeg impact unless separately sourced. Validate package lineage carefully because Debian’s advisory may cover distribution-specific package names and backported fixes.
Mitigation direction
- Apply vendor security updates for Libav packages.
- For Debian LTS, verify coverage from DLA 1907-1 or later.
- Limit or pause untrusted MPC8 media processing until patched.
- Run media processing with CPU and time limits.
- Check Libav or distribution guidance for supported fixed versions.
Validation and detection
- Inventory systems and containers that include Libav.
- Identify workflows that process untrusted media files.
- Check installed Libav versions against vendor advisories.
- Confirm Debian-based systems received the relevant security update.
- Review monitoring for repeated media-processing CPU saturation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-14442 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.libav.org/show_bug.cgi?id=1159CVE reference · x_refsource_MISC
- [debian-lts-announce] 20190902 [SECURITY] [DLA 1907-1] libav security updateCVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.