CVE-2019-17008

Mozilla: Use-after-free in worker destruction

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.

CVSS 3.1 · 8.8 High EPSS 1.9% KEV · Not listed

Vendors

Mozilla Opensuse Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2019-17005

Mozilla: Buffer overflow in plain text serializer

The plain text serializer used a fixed-size array for the number of <ol> 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.

CVSS 3.1 · 8.8 High EPSS 1.9% KEV · Not listed

Vendors

Canonical Mozilla Opensuse and 1 more

Products

Ubuntu Linux Firefox Firefox Esr and 4 more

CVE-2019-11764

Mozilla: Memory safety bugs fixed in Firefox 70 and Firefox ESR 68.2

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.

CVSS 3.1 · 8.8 High EPSS 1.5% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11763

Mozilla: Incorrect HTML parsing results in XSS bypass technique

Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS 3.1 · 6.1 Medium EPSS 1.1% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11762

Mozilla: document.domain-based origin isolation has same-origin-property violation

If two same-origin documents set document.domain differently to become cross-origin, it was possible for them to call arbitrary DOM methods/getters/setters on the now-cross-origin window. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11761

Mozilla: Unintended access to a privileged JSONView object

By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11760

Mozilla: Stack buffer overflow in WebRTC networking

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.

CVSS 3.1 · 8.8 High EPSS 1.4% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11759

Mozilla: Stack buffer overflow in HKDF output

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.

CVSS 3.1 · 8.8 High EPSS 1.6% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11758

Mozilla: Potentially exploitable crash due to 360 Total Security

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 Firefox ESR < 68.2.

CVSS 3.1 · 8.8 High EPSS 1.3% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11757

Mozilla: Use-after-free when creating index updates in IndexedDB

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.

CVSS 3.1 · 8.8 High EPSS 1.3% KEV · Not listed

Vendors

Canonical Mozilla Redhat

Products

Ubuntu Linux Firefox Firefox Esr and 2 more

CVE-2019-11755

thunderbird: spoofing a message author via a crafted S/MIME

A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature, although the signer might have had no access to the contents of the encrypted message, and might have stripped a different signature from the encrypted message. Previous versions had only suppressed showing a digital signature for messages with an outer multipart/signed layer. This vulnerability affects Thunderbird < 68.1.1.

CVSS 3.1 · 7.5 High EPSS 1.3% KEV · Not listed

Vendors

Mozilla

Products

Thunderbird

CVE-2019-11745

nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate

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.

CVSS 3.1 · 8.8 High EPSS 3.0% KEV · Not listed

Vendors

Canonical Debian Mozilla and 3 more

Products

Ubuntu Linux Debian Linux Firefox and 26 more

CVE-2019-11739

Mozilla: Covert Content Attack on S/MIME encryption using a crafted multipart/alternative message

Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Thunderbird Enterprise Linux

CVE-2019-11730

Mozilla: Same-origin policy treats all files in a directory as having the same-origin

A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. It was demonstrated that in combination with a popular Android messaging app, if a malicious HTML attachment is sent to a user and they opened that attachment in Firefox, due to that app's predictable pattern for locally-saved file names, it is possible to read attachments the victim received from other correspondents. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

CVSS 3.1 · 6.5 Medium EPSS 20.3% KEV · Not listed

Vendors

Debian Mozilla Opensuse and 2 more

Products

Debian Linux Firefox Firefox Esr and 5 more

CVE-2019-11706

libical: Type confusion in icaltimezone_get_vtimezone_properties function in icalproperty.c

A flaw in Thunderbird's implementation of iCal causes a type confusion in icaltimezone_get_vtimezone_properties when processing certain email messages, resulting in a crash. This vulnerability affects Thunderbird < 60.7.1.

CVSS 3.1 · 7.5 High EPSS 9.7% KEV · Not listed

Vendors

Mozilla Redhat

Products

Thunderbird Enterprise Linux

CVE-2019-11705

libical: Stack buffer overflow in icalrecur_add_bydayrules in icalrecur.c

A flaw in Thunderbird's implementation of iCal causes a stack buffer overflow in icalrecur_add_bydayrules when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.

CVSS 3.1 · 9.8 Critical EPSS 9.9% KEV · Not listed

Vendors

Mozilla Redhat

Products

Thunderbird Enterprise Linux

CVE-2019-11704

libical: Heap buffer overflow in icalmemory_strdup_and_dequote function in icalvalue.c

A flaw in Thunderbird's implementation of iCal causes a heap buffer overflow in icalmemory_strdup_and_dequote when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.

CVSS 3.1 · 9.8 Critical EPSS 10.5% KEV · Not listed

Vendors

Mozilla Redhat

Products

Thunderbird Enterprise Linux

CVE-2019-11703

libical: Heap buffer over read in icalparser.c parser_get_next_char

A flaw in Thunderbird's implementation of iCal causes a heap buffer overflow in parser_get_next_char when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.

CVSS 3.1 · 9.8 Critical EPSS 10.5% KEV · Not listed

Vendors

Mozilla Redhat

Products

Thunderbird Enterprise Linux

CVE-2019-11691

Mozilla: Use-after-free in XMLHttpRequest

A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

CVSS 3.0 · 9.8 Critical EPSS 1.6% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 1 more

CVE-2018-5188

Mozilla: Memory safety bugs fixed in Firefox 61, Firefox ESR 60.1, and Firefox ESR 52.9

Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

CVSS 3.0 · 9.8 Critical EPSS 3.9% KEV · Not listed

Vendors

Canonical Debian Mozilla and 1 more

Products

Ubuntu Linux Debian Linux Firefox and 9 more