Debian Linux
CVE-2022-1921
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Integer overflow checks
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | Despite the high CVSS score of 7.8, the real-world risk is moderate. The CVSS vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) indicates local access is required with user interaction needed, limiting remote exploitation potential. The EPSS score of 0.06% (17th percentile) suggests very low probability of active exploitation in the wild. While a public proof-of-concept exists at the GitLab issue tracker, the vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog. The combination of local attack vector and required user interaction significantly reduces the practical attack surface compared to network-accessible vulnerabilities. |
| Exploit ScenarioDerived | An attacker crafts a malicious AVI file with specific values that trigger the integer overflow in the gst_avi_demux_invert function, then convinces a user to open this file in a GStreamer-based media player. When processed, the overflow causes a heap overwrite that the attacker can leverage to execute arbitrary code with the privileges of the media player process. A proof-of-concept demonstrating the heap corruption is publicly available at the GitLab issue tracker. |
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Alert meAnalysisAIv1 – Mar 17, 2026
An integer overflow vulnerability in GStreamer's AVI demux element allows attackers to trigger a heap overwrite when parsing malicious AVI files, potentially leading to arbitrary code execution. The vulnerability affects GStreamer on Debian Linux systems and requires user interaction to exploit (opening a malicious file). A public proof-of-concept exploit is available, though real-world exploitation remains low with an EPSS score of 0.06%.
RemediationAI
Apply the security updates provided by Debian through their official channels - DSA-5204 for Debian 11 (Bullseye) and the LTS announcement for Debian 10 (Buster). Users should update their GStreamer packages using standard package management commands (apt update && apt upgrade). As a temporary mitigation until patching is complete, avoid processing untrusted AVI files with GStreamer-based applications and consider implementing file validation or sandboxing for media processing workflows. The upstream fix is tracked at https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1224.
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Technical ContextAI · show details
The vulnerability resides in the gst_avi_demux_invert function within GStreamer, an open-source multimedia framework used for creating streaming media applications. According to the CPE data, the flaw affects all versions of GStreamer (cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*) as well as Debian Linux 10.0 and 11.0. The root cause is CWE-190 (Integer Overflow or Wraparound), where arithmetic operations on integer values produce results that exceed the maximum size the integer type can represent, leading to unexpected behavior and memory corruption.
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Integer overflow in avidemux element in gst_avi_demux_invert function which allows a heap overwrite while parsing avi files. Potential for arbitrary code execution through heap overwrite.
Executive ViewAI
Organizations using Integer overflow in avidemux element in gst_avi_demux_invert function which face notable risk from CVE-2022-1921, a integer overflow vulnerability rated CVSS 7.8. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. Proof-of-concept code is publicly available, increasing the risk of exploitation. Organizations should apply vendor updates when available and consider compensating controls in the interim.
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
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)CVE.org
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