CVE-2017-7793 (GCVE-0-2017-7793)
Vulnerability from cvelistv5 – Published: 2018-06-11 21:00 – Updated: 2024-08-05 16:12
VLAI
EPSS
VEX
Summary
A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
Severity
9.8 (Critical)
CWE
- Use-after-free with Fetch API
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1371889 | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2017… | mailing-listx_refsource_MLIST |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_CONFIRM |
| http://www.securitytracker.com/id/1039465 | vdb-entryx_refsource_SECTRACK |
| https://access.redhat.com/errata/RHSA-2017:2831 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:2885 | vendor-advisoryx_refsource_REDHAT |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/101055 | vdb-entryx_refsource_BID |
| https://www.debian.org/security/2017/dsa-4014 | vendor-advisoryx_refsource_DEBIAN |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_CONFIRM |
| https://www.debian.org/security/2017/dsa-3987 | vendor-advisoryx_refsource_DEBIAN |
| https://security.gentoo.org/glsa/201803-14 | vendor-advisoryx_refsource_GENTOO |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 56
(custom)
|
|
| Mozilla | Firefox ESR |
Affected:
unspecified , < 52.4
(custom)
|
|
| Mozilla | Thunderbird |
Affected:
unspecified , < 52.4
(custom)
|
Date Public
2017-09-28 00:00
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"sourceIdentifier": "security@mozilla.org",
"vulnStatus": "Modified",
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},
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2025-11-25T18:15:19+00:00",
"cve": "CVE-2017-7793",
"id": "CVE-2017-7793",
"initial_release_date": "2017-09-28T00:00:00+00:00",
"product_status:fixed": "229",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Mozilla: Use-after-free with Fetch API (MFSA 2017-22)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-7793.json",
"version": "3"
}
}
}
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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.
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