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firefox vulnerabilities

Vulnerabilities published for firefox in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 691

  1. CVE-2021-23995

    High · CVSS 8.8EPSS 1.18%Fix available

    CVE-2021-23995

    When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

    • Update to 88.0+build2-0ubuntu0.16.04.1
    Published Updated
  2. CVE-2021-23999

    High · CVSS 8.8EPSS 1.37%Fix available

    CVE-2021-23999

    If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

    • Update to 88.0+build2-0ubuntu0.16.04.1
    Published Updated
  3. CVE-2021-24000

    Low · CVSS 3.1EPSS 0.6%Fix available

    CVE-2021-24000

    A race condition with requestPointerLock() and setTimeout() could have resulted in a user interacting with one tab when they believed they were on a separate tab. In conjunction with certain elements (such as &lt;input type="file"&gt;) this could have led to an attack where a user was confused about the origin of the webpage and potentially disclosed information they did not intend to. This vulnerability affects Firefox < 88.

    • Update to 88.0+build2-0ubuntu0.16.04.1
    Published Updated
  4. CVE-2021-24002

    High · CVSS 8.8EPSS 1.12%Fix available

    CVE-2021-24002

    When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

    • Update to 88.0+build2-0ubuntu0.16.04.1
    Published Updated
  5. CVE-2021-29945

    Medium · CVSS 6.5EPSS 1.2%Fix available

    CVE-2021-29945

    The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

    • Update to 88.0+build2-0ubuntu0.16.04.1
    Published Updated
  6. CVE-2021-29947

    High · CVSS 8.8EPSS 0.87%Fix available

    CVE-2021-29947

    Mozilla developers and community members reported memory safety bugs present in Firefox 87. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.

    • Update to 88.0+build2-0ubuntu0.16.04.1
    Published Updated
  7. CVE-2021-23981

    High · CVSS 8.1EPSS 1.15%Fix available

    CVE-2021-23981

    A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

    • Update to 87.0+build3-0ubuntu0.16.04.2
    Published Updated
  8. CVE-2021-23982

    Medium · CVSS 6.5EPSS 0.74%Fix available

    CVE-2021-23982

    Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

    • Update to 87.0+build3-0ubuntu0.16.04.2
    Published Updated
  9. CVE-2021-23984

    Medium · CVSS 6.5EPSS 1.11%Fix available

    CVE-2021-23984

    A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

    • Update to 87.0+build3-0ubuntu0.16.04.2
    Published Updated
  10. CVE-2021-23985

    Medium · CVSS 6.5EPSS 1.51%Fix available

    CVE-2021-23985

    If an attacker is able to alter specific about:config values (for example malware running on the user's computer), the Devtools remote debugging feature could have been enabled in a way that was unnoticable to the user. This would have allowed a remote attacker (able to make a direct network connection to the victim) to monitor the user's browsing activity and (plaintext) network traffic. This was addressed by providing a visual cue when Devtools has an open network socket. This vulnerability affects Firefox < 87.

    • Update to 87.0+build3-0ubuntu0.16.04.2
    Published Updated
  11. CVE-2021-23986

    Medium · CVSS 6.5EPSS 0.43%Fix available

    CVE-2021-23986

    A malicious extension with the 'search' permission could have installed a new search engine whose favicon referenced a cross-origin URL. The response to this cross-origin request could have been read by the extension, allowing a same-origin policy bypass by the extension, which should not have cross-origin permissions. This cross-origin request was made without cookies, so the sensitive information disclosed by the violation was limited to local-network resources or resources that perform IP-based authentication. This vulnerability affects Firefox < 87.

    • Update to 87.0+build3-0ubuntu0.16.04.2
    Published Updated
  12. CVE-2021-23987

    High · CVSS 8.8EPSS 1.42%Fix available

    CVE-2021-23987

    Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

    • Update to 87.0+build3-0ubuntu0.16.04.2
    Published Updated
  13. CVE-2021-23988

    High · CVSS 8.8EPSS 1.08%Fix available

    CVE-2021-23988

    Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87.

    • Update to 87.0+build3-0ubuntu0.16.04.2
    Published Updated

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