Gstreamer
CVE-2017-5840
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, read limits
MITRE ATT&CK
1 technique across 1 tactic: Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | The CVSS 3.0 score of 7.5 (High) reflects a remotely exploitable vulnerability requiring no authentication or user interaction (AV:N/AC:L/PR:N/UI:N), though impact is limited to availability (A:H) with no confidentiality or integrity concerns. The EPSS score of 6.86% places this in the 91st percentile, indicating significantly higher exploitation likelihood than most CVEs. While not listed in CISA's KEV catalog, the combination of remote exploitability, low attack complexity, and high EPSS score suggests this is a legitimate priority for systems processing untrusted media. The availability of patches and public disclosure via multiple channels including proof-of-concept information in the Gnome bugzilla increases the urgency for remediation. |
| Exploit ScenarioDerived | An attacker could craft a malicious MP4 or QuickTime file with manipulated stts index values and host it on a website or send it via email. When a vulnerable GStreamer-based application (such as a media player or transcoding service) attempts to parse this file, the out-of-bounds read would trigger a crash, causing denial of service. Given the remote attack vector and no authentication requirements, this could be automated to target web services that process user-uploaded media files. |
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Alert meAnalysisAIv1 – Mar 17, 2026
A buffer overflow vulnerability in GStreamer's MP4/QuickTime demuxer allows remote attackers to cause denial of service through out-of-bounds heap memory reads. The vulnerability affects GStreamer versions before 1.10.3 and can be triggered by processing specially crafted MP4 files, making it a concern for applications that process untrusted media content. With an EPSS score of 6.86% (91st percentile), this vulnerability has a higher-than-average likelihood of exploitation in the wild.
RemediationAI
Upgrade GStreamer to version 1.10.3 or later, which contains the fix for this vulnerability as documented in the official GStreamer release notes at https://gstreamer.freedesktop.org/releases/1.10/#1.10.3. For distribution-specific updates, apply the security patches provided: Debian users should reference DSA-3820, Red Hat users should apply RHSA-2017:2060, and Gentoo users should follow GLSA-201705-10. As a temporary mitigation until patching is possible, restrict processing of untrusted MP4/QuickTime files and implement input validation or sandboxing for media processing operations.
Affects your stack
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Technical ContextAI · show details
The vulnerability resides in the qtdemux_parse_samples function within the gst/isomp4/qtdemux.c file of the gst-plugins-good component, which is responsible for parsing MP4 and QuickTime media containers. Based on the CPE identifier (cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*), all GStreamer installations prior to version 1.10.3 are affected. The issue is classified as CWE-125 (Out-of-bounds Read), occurring when the code improperly handles the current stts (time-to-sample) index while parsing sample data from media files, allowing reads beyond allocated heap memory boundaries.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
The qtdemux_parse_samples function in gst/isomp4/qtdemux.c in gst-plugins-good in GStreamer before 1.10.3 allows remote attackers to cause a denial of service (out-of-bounds heap read) via vectors involving the current stts index.
Executive ViewAI
Organizations using gst/isomp4/qtdemux.c in gst-plugins-good in GStreamer face notable risk from CVE-2017-5840, a out-of-bounds read vulnerability rated CVSS 7.5. Exploitation could compromise the security of affected deployments. A patch is available and should be applied as part of regular vulnerability management.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)CVE.org
Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer
Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer
Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer
The FLIC decoder in GStreamer before 1.10.2 allows remote attackers to cause a denial of service (out-of-bounds write an
A heap-based buffer overflow vulnerability exists in GStreamer's RTSP connection parser that allows remote attackers to
A heap buffer over-read vulnerability exists in GStreamer's isomp4 plugin that allows reading past allocated memory boun
An integer overflow vulnerability in the GStreamer multimedia framework's matroska demuxer allows heap memory corruption
A critical integer overflow vulnerability in GStreamer's qtdemux element allows attackers to trigger denial of service o
A critical integer overflow vulnerability in the GStreamer multimedia framework's Matroska (MKV) demuxer can cause denia
An integer overflow vulnerability in GStreamer's Matroska demuxer can cause denial of service or potentially heap memory
An integer overflow vulnerability in GStreamer's AVI demux element allows attackers to trigger a heap overwrite when par
A heap overflow vulnerability exists in GStreamer's matroskaparse element due to an integer overflow in the gst_matroska
GitHub PoC
Exploit-DB