Mozilla Thunderbird vulnerabilities

CVE-2020-6794 [MEDIUM] CWE-312 CVE-2020-6794: If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Thunderbird 60. The new master password is added only on the new file. This could allow the

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-2020-6795 [MEDIUM] CWE-476 CVE-2020-6795: When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing cod When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.

CVE-2020-6792 [MEDIUM] CWE-908 CVE-2020-6792: When deriving an identifier for an email message, uninitialized memory was used in addition to the m When deriving an identifier for an email message, uninitialized memory was used in addition to the message contents. This vulnerability affects Thunderbird < 68.5.

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-2020-6793 [MEDIUM] CWE-908 CVE-2020-6793: When processing an email message with an ill-formed envelope, Thunderbird could read data from a ran When processing an email message with an ill-formed envelope, Thunderbird could read data from a random memory location. This vulnerability affects Thunderbird < 68.5.

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-2019-17024 [HIGH] CVE-2019-17024: Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68 Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. 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 < 68.4 and Firefox < 72.

CVE-2019-17005 [HIGH] CWE-787 CVE-2019-17005: The plain text serializer used a fixed-size array for the number of <ol> elements it could process; The plain text serializer used a fixed-size array for the number of elements it could process; however it was possible to overflow the static-sized array leading to memory corruption 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.

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-2019-17009 [HIGH] CVE-2019-17009: When running, the updater service wrote status and log files to an unrestricted location; potentiall When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Th

CVE-2019-17012 [HIGH] CWE-787 CVE-2019-17012: Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. Some of t Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. 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 < 68.3, Firefox ESR < 68.3, and Firefox < 71.

CVE-2019-17008 [HIGH] CWE-416 CVE-2019-17008: When using nested workers, a use-after-free could occur during worker destruction. This resulted in When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

CVE-2019-11757 [HIGH] CWE-416 CVE-2019-11757: When following the value's prototype chain, it was possible to retain a reference to a locale, delet When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVE-2019-11760 [HIGH] CWE-787 CVE-2019-11760: A fixed-size stack buffer could overflow in nrappkit when doing WebRTC signaling. This resulted in a A fixed-size stack buffer could overflow in nrappkit when doing WebRTC signaling. This resulted in a potentially exploitable crash in some instances. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVE-2019-17017 [HIGH] CVE-2019-17017: Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a crash Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

CVE-2019-11758 [HIGH] CWE-787 CVE-2019-11758: Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total S Mozilla community member Philipp reported a memory safety bug present in Firefox 68 when 360 Total Security was installed. This bug showed evidence of memory corruption in the accessibility engine and we presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox < 69, Thunderbird < 68.2, and Fi