CVE-2021-23968

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Mozilla Firefox is a standalone web browser, designed for standards compliance and performance. Its functionality can be enhanced via a plethora of extensions.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.

Security Fix(es):

Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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 < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.(CVE-2020-15670)

Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.(CVE-2020-15673)

Mozilla developers reported memory safety bugs present in Firefox 80. 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 < 81.(CVE-2020-15674)

When processing surfaces, the lifetime may outlive a persistent buffer leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 81.(CVE-2020-15675)

If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.(CVE-2020-15680)

When multiple WASM threads had a reference to a module, and were looking up exported functions, one WASM thread could have overwritten another's entry in a shared stub table, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 82.(CVE-2020-15681)

When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an origin they didn't control, resulting in a spoofing attack. This was fixed by changing external protocol prompts to be tab-modal while also ensuring they could not be incorrectly associated with a different origin. This vulnerability affects Firefox < 82.(CVE-2020-15682)

Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 < 78.4, Firefox < 82, and Thunderbird < 78.4.(CVE-2020-15683)

Mozilla developers reported memory safety bugs present in Firefox 81. 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 < 82.(CVE-2020-15684)

Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote attacker to leak cross-origin data via a crafted HTML page.(CVE-2020-16012)

Use after free in WebRTC in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially exploit heap corruption via a crafted SCTP packet.(CVE-2020-16044)

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.(CVE-2020-26950)

(CVE-2020-26951)

(CVE-2020-26953) …

Mozilla Firefox is a standalone web browser, designed for standards compliance and performance. Its functionality can be enhanced via a plethora of extensions.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.

Security Fix(es):

Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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 < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.(CVE-2020-15670)

Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.(CVE-2020-15673)

Mozilla developers reported memory safety bugs present in Firefox 80. 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 < 81.(CVE-2020-15674)

When processing surfaces, the lifetime may outlive a persistent buffer leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 81.(CVE-2020-15675)

If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.(CVE-2020-15680)

When multiple WASM threads had a reference to a module, and were looking up exported functions, one WASM thread could have overwritten another's entry in a shared stub table, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 82.(CVE-2020-15681)

When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an origin they didn't control, resulting in a spoofing attack. This was fixed by changing external protocol prompts to be tab-modal while also ensuring they could not be incorrectly associated with a different origin. This vulnerability affects Firefox < 82.(CVE-2020-15682)

Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 < 78.4, Firefox < 82, and Thunderbird < 78.4.(CVE-2020-15683)

Mozilla developers reported memory safety bugs present in Firefox 81. 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 < 82.(CVE-2020-15684)

Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote attacker to leak cross-origin data via a crafted HTML page.(CVE-2020-16012)

Use after free in WebRTC in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to potentially exploit heap corruption via a crafted SCTP packet.(CVE-2020-16044)

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.(CVE-2020-26950)

(CVE-2020-26951)

(CVE-2020-26953) …

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs (CVE-2021-23968).

As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin (CVE-2021-23969).

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that MediaError message may have revealed information about the resource (CVE-2021-23973).

Mozilla developers Alexis Beingessner, Tyson Smith, Nika Layzell, and Mats Palmgren reported memory safety bugs present in Thunderbird 78.7. 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 (CVE-2021-23978).

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs (CVE-2021-23968).

As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin (CVE-2021-23969).

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that MediaError message may have revealed information about the resource (CVE-2021-23973).

Mozilla developers Alexis Beingessner, Tyson Smith, Nika Layzell, and Mats Palmgren reported memory safety bugs present in Firefox ESR 78.7. 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 (CVE-2021-23978).

This update for MozillaFirefox fixes the following issues:

• Firefox Extended Support Release 78.8.0 ESR
  • Fixed: Various stability, functionality, and security fixes MFSA 2021-08 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

This update was imported from the SUSE:SLE-15-SP2:Update update project.

This update for MozillaThunderbird fixes the following issues:

• Mozilla Thunderbird 78.8
  • fixed: Importing an address book from a CSV file always reported an error
  • fixed: Security information for S/MIME messages was not displayed correctly prior to a draft being saved
  • fixed: Calendar: FileLink UI fixes for Caldav calendars
  • fixed: Recurring tasks were always marked incomplete; unable to use filters
  • fixed: Various UI widgets not working
  • fixed: Dark theme improvements
  • fixed: Extension manager was missing link to addon support web page
  • fixed: Various security fixes MFSA 2021-09 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Thunderbird 78.8

This update was imported from the SUSE:SLE-15-SP2:Update update project.

These are all security issues fixed in the MozillaFirefox-92.0-1.2 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the MozillaThunderbird-91.1.1-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

This update for MozillaFirefox fixes the following issues:

• Firefox Extended Support Release 78.8.0 ESR
  • Fixed: Various stability, functionality, and security fixes MFSA 2021-08 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

This update for MozillaThunderbird fixes the following issues:

• Mozilla Thunderbird 78.8
  • fixed: Importing an address book from a CSV file always reported an error
  • fixed: Security information for S/MIME messages was not displayed correctly prior to a draft being saved
  • fixed: Calendar: FileLink UI fixes for Caldav calendars
  • fixed: Recurring tasks were always marked incomplete; unable to use filters
  • fixed: Various UI widgets not working
  • fixed: Dark theme improvements
  • fixed: Extension manager was missing link to addon support web page
  • fixed: Various security fixes MFSA 2021-09 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Thunderbird 78.8

This update for MozillaFirefox fixes the following issues:

• Firefox Extended Support Release 78.8.0 ESR
  • Fixed: Various stability, functionality, and security fixes MFSA 2021-08 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

This update for MozillaFirefox fixes the following issues:

• Firefox Extended Support Release 78.8.0 ESR
  • Fixed: Various stability, functionality, and security fixes MFSA 2021-08 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8
  • Fixed: Prevent access to NTFS special paths that could lead to filesystem corruption.
  • Buffer overflow in depth pitch calculations for compressed textures

This update for MozillaFirefox fixes the following issues:

• Firefox Extended Support Release 78.8.0 ESR
  • Fixed: Various stability, functionality, and security fixes MFSA 2021-08 (bsc#1182614)
  • CVE-2021-23969: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23968: Content Security Policy violation report could have contained the destination of a redirect
  • CVE-2021-23973: MediaError message property could have leaked information about cross-origin resources
  • CVE-2021-23978: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, conduct cross-site scripting (XSS) attacks, bypass HTTP auth phishing warnings, or execute arbitrary code.

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbitrary code. (CVE-2021-23968, CVE-2021-23969, CVE-2021-23973, CVE-2021-23978)

It was discovered that Thunderbird may keep key material in memory in some circumstances. A local attacker could potentially exploit this to obtain private keys. (CVE-2021-29950)