Mozilla Firefox Esr vulnerabilities

CVE-2020-6820 [HIGH] CWE-362 CVE-2020-6820: Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-fre Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.

CVE-2020-6827 [MEDIUM] CWE-1021 CVE-2020-6827: When following a link that opened an intent://-schemed URL, causing a custom tab to be opened, Firef When following a link that opened an intent://-schemed URL, causing a custom tab to be opened, Firefox for Android could be tricked into displaying the incorrect URI. *Note: This issue only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.7.

CVE-2020-6814 [CRITICAL] CWE-787 CVE-2020-6814: Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. Some of thes Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. 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 Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CVE-2020-6805 [HIGH] CWE-416 CVE-2020-6805: When removing data about an origin whose tab was recently closed, a use-after-free could occur in th When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CVE-2020-6811 [HIGH] CWE-77 CVE-2020-6811: The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a req The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution. This vulnerability affects Thunderbird < 68.6, Fire

CVE-2020-6807 [HIGH] CWE-416 CVE-2020-6807: When a device was changed while a stream was about to be destroyed, the <code>stream-reinit</code> t When a device was changed while a stream was about to be destroyed, the stream-reinit task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CVE-2020-6806 [HIGH] CWE-125 CVE-2020-6806: By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the en By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CVE-2020-6812 [MEDIUM] CWE-200 CVE-2020-6812: The first time AirPods are connected to an iPhone, they become named after the user's name by defaul The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g. Jane Doe's AirPods.) Websites with camera or microphone permission are able to enumerate device names, disclosing the user's name. To resolve this issue, Firefox added a special case that renames devices containing the substring 'AirPods' to sim

CVE-2019-17026 [HIGH] CWE-843 CVE-2019-17026: Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a typ Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.

CVE-2020-6796 [HIGH] CWE-787 CVE-2020-6796: A content process could have modified shared memory relating to crash reporting information, crash i A content process could have modified shared memory relating to crash reporting information, crash itself, and cause an out-of-bound write. This could have caused memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 73 and Firefox < ESR68.5.

CVE-2020-6799 [HIGH] CWE-88 CVE-2020-6799: Command line arguments could have been injected during Firefox invocation as a shell handler for cer Command line arguments could have been injected during Firefox invocation as a shell handler for certain unsupported file types. This required Firefox to be configured as the default handler for a given file type and for a file downloaded to be opened in a third party application that insufficiently sanitized URL data. In that situation, clicking a link

CVE-2020-6800 [HIGH] CWE-787 CVE-2020-6800: Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firef Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. 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. In general, these flaws cannot be exploited through email in the Thunderbird product

CVE-2020-6797 [MEDIUM] CWE-20 CVE-2020-6797: By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbit By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating sy

CVE-2020-6798 [MEDIUM] CWE-79 CVE-2020-6798: If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsin If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on the browser behaving correctly could suffer a cross-site scripting vulnerability as a result. In general, this flaw cannot be exploited through email in the Thunderbird product because

CVE-2019-9812 [CRITICAL] CVE-2019-9812: Given a compromised sandboxed content process due to a separate vulnerability, it is possible to esc Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts.firefox.com in that process and forcing a log-in to a malicious Firefox Sync account. Preference settings that disable the sandbox are then synchronized to the local machine and the compromised browser would restart withou

CVE-2019-11764 [HIGH] CWE-787 CVE-2019-11764: Mozilla developers and community members reported memory safety bugs present in Firefox 69 and Firef Mozilla developers and community members reported memory safety bugs present in Firefox 69 and Firefox ESR 68.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVE-2019-17010 [HIGH] CWE-362 CVE-2019-17010: Under certain conditions, when checking the Resist Fingerprinting preference during device orientati Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

CVE-2019-11745 [HIGH] CWE-787 CVE-2019-11745: When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

CVE-2019-17011 [HIGH] CWE-362 CVE-2019-17011: Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a rac Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

CVE-2019-11759 [HIGH] CWE-120 CVE-2019-11759: An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored o An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.