FKIE_CVE-2021-29955

Vulnerability from fkie_nvd - Published: 2021-06-24 14:15 - Updated: 2024-11-21 06:02
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Summary
A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1692972Permissions Required, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2021-10/Release Notes, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2021-11/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1692972Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2021-10/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2021-11/Release Notes, Vendor Advisory
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox_esr *
To clipboard 

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  "descriptions": [
    {
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      "value": "A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR \u003c 78.9 and Firefox \u003c 87."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de ejecuci\u00f3n transitoria, denominada Floating Point Value Injection (FPVI) permit\u00eda a un atacante filtrar direcciones de memoria arbitrarias y tambi\u00e9n podr\u00eda haber permitido ataques de confusi\u00f3n de tipo JIT. (Una vulnerabilidad relacionada, Speculative Code Store Bypass (SCSB), no afecta a Firefox). Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 78.9 y Firefox versiones anteriores a 87"
    }
  ],
  "id": "CVE-2021-29955",
  "lastModified": "2024-11-21T06:02:03.303",
  "metrics": {
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        "baseSeverity": "LOW",
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          "version": "2.0"
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          "confidentialityImpact": "HIGH",
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  "published": "2021-06-24T14:15:10.053",
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  "vulnStatus": "Modified",
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}


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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

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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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