CVE-2020-12387 (GCVE-0-2020-12387)
Vulnerability from cvelistv5 – Published: 2020-05-26 17:04 – Updated: 2024-08-04 11:56
VLAI
Summary
A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.
Severity
8.1 (High)
CWE
- Use-after-free during worker shutdown
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_MISC |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_MISC |
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_MISC |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1545345 | x_refsource_MISC |
| https://usn.ubuntu.com/4373-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://security.gentoo.org/glsa/202005-03 | x_refsource_MISC |
| https://security.gentoo.org/glsa/202005-04 | x_refsource_MISC |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox ESR |
Affected:
unspecified , < 68.8
(custom)
|
|
| Mozilla | Firefox |
Affected:
unspecified , < 76
(custom)
|
|
| Mozilla | Thunderbird |
Affected:
unspecified , < 68.8.0
(custom)
|
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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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