CVE-2016-2821 (GCVE-0-2016-2821)
Vulnerability from cvelistv5 – Published: 2016-06-13 10:00 – Updated: 2024-08-05 23:32
VLAI
EPSS
VEX
Summary
Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.
Severity
7.5 (High)
CWE
- n/a
Assigner
References
11 references
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|---|---|
| http://www.securitytracker.com/id/1036057 | vdb-entryx_refsource_SECTRACK |
| http://www.mozilla.org/security/announce/2016/mfs… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2016:1217 | vendor-advisoryx_refsource_REDHAT |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://www.oracle.com/technetwork/topics/security… | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://www.ubuntu.com/usn/USN-2993-1 | vendor-advisoryx_refsource_UBUNTU |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://www.securityfocus.com/bid/91075 | vdb-entryx_refsource_BID |
| http://www.debian.org/security/2016/dsa-3600 | vendor-advisoryx_refsource_DEBIAN |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1271460 | x_refsource_CONFIRM |
Date Public
2016-06-07 00:00
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"nodes": [
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor."
},
{
"lang": "es",
"value": "Vulnerabilidad de uso despu\u00e9s de liberaci\u00f3n de memoria en la clase mozilla::dom::Element en Mozilla Firefox en versiones anteriores a 47.0 y Firefox ESR 45.x en versiones anteriores a 45.2, cuando el modo contenteditable est\u00e1 habilitado, permite a atacantes remotos ejecutar c\u00f3digo arbitrario o provocar una denegaci\u00f3n de servicio (corrupci\u00f3n de la memoria din\u00e1mica) desencadenando la eliminaci\u00f3n de elementos DOM que fueron creados por el editor."
}
],
"evaluatorComment": "\u003ca href=\"http://cwe.mitre.org/data/definitions/416.html\"\u003eCWE-416: Use After Free\u003c/a\u003e",
"id": "CVE-2016-2821",
"lastModified": "2026-05-06T22:30:45.220",
"metrics": {
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"baseSeverity": "MEDIUM",
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"published": "2016-06-13T10:59:04.370",
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"url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00014.html"
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{
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},
{
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],
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{
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{
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{
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"current_release_date": "2026-01-13T21:09:09+00:00",
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"id": "CVE-2016-2821",
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"product_status:fixed": "203",
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"source": "Red Hat CSAF VEX",
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"title": "Mozilla: Use-after-free deleting tables from a contenteditable document (MFSA 2016-51)",
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"source": "SUSE CSAF VEX",
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"title": "SUSE CVE CVE-2016-2821",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-2821.json",
"version": "18"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.