CVE-2016-1950

Heap-based buffer overflow in Mozilla Network Security Services (NSS) before 3.19.2.3 and 3.20.x and 3.21.x before 3.21.1, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to execute arbitrary code via crafted ASN.1 data in an X.509 certificate.

Updated nss and firefox packages fix security vulnerabilities:

Security researcher SkyLined reported a use-after-free issue in how audio is handled through the Web Audio API during MediaStream playback through interactions with the Web Audio API. This results in a potentially exploitable crash (CVE-2015-4477).

Security researcher cgvwzq reported that it is possible to read cross-origin URLs following a redirect if performance.getEntries() is used along with an iframe to host a page. Navigating back in history through script, content is pulled from the browser cache for the redirected location instead of going to the original location. This is a same-origin policy violation and could allow for data theft (CVE-2015-7207).

A heap-based buffer overflow flaw was found in the way NSS parsed certain ASN.1 structures. An attacker could use this flaw to create a specially crafted certificate which, when parsed by NSS, could cause it to crash, or execute arbitrary code, using the permissions of the user running an application compiled against the NSS library (CVE-2016-1950).

Mozilla developer Tim Taubert used the Address Sanitizer tool and software fuzzing to discover a use-after-free vulnerability while processing DER encoded keys in the Network Security Services (NSS) libraries. The vulnerability overwrites the freed memory with zeroes (CVE-2016-1979).

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox (CVE-2016-1952, CVE-2016-1954, CVE-2016-1957, CVE-2016-1958, CVE-2016-1960, CVE-2016-1961, CVE-2016-1962, CVE-2016-1974, CVE-2016-1964, CVE-2016-1965, CVE-2016-1966).

Multiple security flaws were found in the graphite2 font library shipped with Firefox. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox (CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792, CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-2797, CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-2802).

Updated rootcerts and nss packages fix security vulnerability:

A heap-based buffer overflow flaw was found in the way NSS parsed certain ASN.1 structures. An attacker could use this flaw to create a specially crafted certificate which, when parsed by NSS, could cause it to crash, or execute arbitrary code, using the permissions of the user running an application compiled against the NSS library (CVE-2016-1950).

This issue was supposed to have been fixed in MGASA-2016-0105, but Mozilla did not include the fix until the following nss releases.

These are all security issues fixed in the MozillaFirefox-50.1.0-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the MozillaThunderbird-45.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libfreebl3-3.26.2-1.1 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, mozilla-nspr, mozilla-nss fixes the following issues:

Mozilla Firefox was updated to 38.7.0 ESR (bsc#969894), fixing following security issues:

• MFSA 2016-16/CVE-2016-1952/CVE-2016-1953 Miscellaneous memory safety hazards (rv:45.0 / rv:38.7)
• MFSA 2016-17/CVE-2016-1954 Local file overwriting and potential privilege escalation through CSP reports
• MFSA 2016-20/CVE-2016-1957 Memory leak in libstagefright when deleting an array during MP4 processing
• MFSA 2016-21/CVE-2016-1958 Displayed page address can be overridden
• MFSA 2016-23/CVE-2016-1960 Use-after-free in HTML5 string parser
• MFSA 2016-24/CVE-2016-1961 Use-after-free in SetBody
• MFSA 2016-25/CVE-2016-1962 Use-after-free when using multiple WebRTC data channels
• MFSA 2016-27/CVE-2016-1964 Use-after-free during XML transformations
• MFSA 2016-28/CVE-2016-1965 Addressbar spoofing though history navigation and Location protocol property
• MFSA 2016-31/CVE-2016-1966 Memory corruption with malicious NPAPI plugin
• MFSA 2016-34/CVE-2016-1974 Out-of-bounds read in HTML parser following a failed allocation
• MFSA 2016-35/CVE-2016-1950 Buffer overflow during ASN.1 decoding in NSS
• MFSA 2016-37/CVE-2016-1977/CVE-2016-2790/CVE-2016-2791/ CVE-2016-2792/CVE-2016-2793/CVE-2016-2794/CVE-2016-2795/ CVE-2016-2796/CVE-2016-2797/CVE-2016-2798/CVE-2016-2799/ CVE-2016-2800/CVE-2016-2801/CVE-2016-2802 Font vulnerabilities in the Graphite 2 library

Mozilla NSPR was updated to version 4.12 (bsc#969894), fixing following bugs:

• added a PR_GetEnvSecure function, which attempts to detect if the program is being executed with elevated privileges, and returns NULL if detected. It is recommended to use this function in general purpose library code.
• fixed a memory allocation bug related to the PR_*printf functions
• exported API PR_DuplicateEnvironment, which had already been added in NSPR 4.10.9
• added support for FreeBSD aarch64
• several minor correctness and compatibility fixes

Mozilla NSS was updated to fix security issues (bsc#969894):

• MFSA 2016-15/CVE-2016-1978 Use-after-free in NSS during SSL connections in low memory
• MFSA 2016-35/CVE-2016-1950 Buffer overflow during ASN.1 decoding in NSS
• MFSA 2016-36/CVE-2016-1979 Use-after-free during processing of DER encoded keys in NSS

This update for MozillaFirefox, mozilla-nspr, mozilla-nss fixes the following issues:

Mozilla Firefox was updated to 38.7.0 ESR (bsc#969894)

• MFSA 2016-16/CVE-2016-1952/CVE-2016-1953 Miscellaneous memory safety hazards (rv:45.0 / rv:38.7)
• MFSA 2016-17/CVE-2016-1954 Local file overwriting and potential privilege escalation through CSP reports
• MFSA 2016-20/CVE-2016-1957 A memory leak in libstagefright when deleting an array during MP4 processing was fixed.
• MFSA 2016-21/CVE-2016-1958 The displayed page address can be overridden
• MFSA 2016-23/CVE-2016-1960 A use-after-free in HTML5 string parser was fixed.
• MFSA 2016-24/CVE-2016-1961 A use-after-free in SetBody was fixed.
• MFSA 2016-25/CVE-2016-1962 A use-after-free when using multiple WebRTC data channels was fixed.
• MFSA 2016-27/CVE-2016-1964 A use-after-free during XML transformations was fixed.
• MFSA 2016-28/CVE-2016-1965 Addressbar spoofing though history navigation and Location protocol property was fixed.
• MFSA 2016-31/CVE-2016-1966 Memory corruption with malicious NPAPI plugin was fixed.
• MFSA 2016-34/CVE-2016-1974 A out-of-bounds read in the HTML parser following a failed allocation was fixed.
• MFSA 2016-35/CVE-2016-1950 A buffer overflow during ASN.1 decoding in NSS was fixed.
• MFSA 2016-37/CVE-2016-1977/CVE-2016-2790/CVE-2016-2791/ CVE-2016-2792/CVE-2016-2793/CVE-2016-2794/CVE-2016-2795/ CVE-2016-2796/CVE-2016-2797/CVE-2016-2798/CVE-2016-2799/ CVE-2016-2800/CVE-2016-2801/CVE-2016-2802 Various font vulnerabilities were fixed in the embedded Graphite 2 library

Mozilla NSS was updated to fix:

• MFSA 2016-15/CVE-2016-1978 Use-after-free in NSS during SSL connections in low memory
• MFSA 2016-35/CVE-2016-1950 Buffer overflow during ASN.1 decoding in NSS
• MFSA 2016-36/CVE-2016-1979 Use-after-free during processing of DER encoded keys in NSS

Mozilla NSPR was updated to version 4.12 (bsc#969894)

• added a PR_GetEnvSecure function, which attempts to detect if the program is being executed with elevated privileges, and returns NULL if detected. It is recommended to use this function in general purpose library code.
• fixed a memory allocation bug related to the PR_*printf functions
• exported API PR_DuplicateEnvironment, which had already been added in NSPR 4.10.9
• added support for FreeBSD aarch64
• several minor correctness and compatibility fixes
• Enable atomic instructions on mips (bmo#1129878)
• Fix mips assertion failure when creating thread with custom stack size (bmo#1129968)

This update for MozillaFirefox, mozilla-nspr, mozilla-nss fixes the following issues:

Mozilla Firefox was updated to 38.7.0 ESR (bsc#969894), fixing following security issues:

• MFSA 2016-16/CVE-2016-1952/CVE-2016-1953 Miscellaneous memory safety hazards (rv:45.0 / rv:38.7)
• MFSA 2016-17/CVE-2016-1954 Local file overwriting and potential privilege escalation through CSP reports
• MFSA 2016-20/CVE-2016-1957 Memory leak in libstagefright when deleting an array during MP4 processing
• MFSA 2016-21/CVE-2016-1958 Displayed page address can be overridden
• MFSA 2016-23/CVE-2016-1960 Use-after-free in HTML5 string parser
• MFSA 2016-24/CVE-2016-1961 Use-after-free in SetBody
• MFSA 2016-25/CVE-2016-1962 Use-after-free when using multiple WebRTC data channels
• MFSA 2016-27/CVE-2016-1964 Use-after-free during XML transformations
• MFSA 2016-28/CVE-2016-1965 Addressbar spoofing though history navigation and Location protocol property
• MFSA 2016-31/CVE-2016-1966 Memory corruption with malicious NPAPI plugin
• MFSA 2016-34/CVE-2016-1974 Out-of-bounds read in HTML parser following a failed allocation
• MFSA 2016-35/CVE-2016-1950 Buffer overflow during ASN.1 decoding in NSS
• MFSA 2016-37/CVE-2016-1977/CVE-2016-2790/CVE-2016-2791/ CVE-2016-2792/CVE-2016-2793/CVE-2016-2794/CVE-2016-2795/ CVE-2016-2796/CVE-2016-2797/CVE-2016-2798/CVE-2016-2799/ CVE-2016-2800/CVE-2016-2801/CVE-2016-2802 Font vulnerabilities in the Graphite 2 library

Mozilla NSPR was updated to version 4.12 (bsc#969894), fixing following bugs:

• added a PR_GetEnvSecure function, which attempts to detect if the program is being executed with elevated privileges, and returns NULL if detected. It is recommended to use this function in general purpose library code.
• fixed a memory allocation bug related to the PR_*printf functions
• exported API PR_DuplicateEnvironment, which had already been added in NSPR 4.10.9
• added support for FreeBSD aarch64
• several minor correctness and compatibility fixes

Mozilla NSS was updated to fix security issues (bsc#969894):

• MFSA 2016-15/CVE-2016-1978 Use-after-free in NSS during SSL connections in low memory
• MFSA 2016-35/CVE-2016-1950 Buffer overflow during ASN.1 decoding in NSS
• MFSA 2016-36/CVE-2016-1979 Use-after-free during processing of DER encoded keys in NSS

Mozilla Firefox was updated to the Firefox ESR release 45.9.

Mozilla NSS was updated to support TLS 1.3 (close to release draft) and various new ciphers, PRFs, Diffie Hellman key agreement and support for more hashes.

Security issues fixed in Firefox (bsc#1035082)

• MFSA 2017-11/CVE-2017-5469: Potential Buffer overflow in flex-generated code
• MFSA 2017-11/CVE-2017-5429: Memory safety bugs fixed in Firefox 53, Firefox ESR 45.9, and Firefox ESR 52.1
• MFSA 2017-11/CVE-2017-5439: Use-after-free in nsTArray Length() during XSLT processing
• MFSA 2017-11/CVE-2017-5438: Use-after-free in nsAutoPtr during XSLT processing
• MFSA 2017-11/CVE-2017-5437: Vulnerabilities in Libevent library
• MFSA 2017-11/CVE-2017-5436: Out-of-bounds write with malicious font in Graphite 2
• MFSA 2017-11/CVE-2017-5435: Use-after-free during transaction processing in the editor
• MFSA 2017-11/CVE-2017-5434: Use-after-free during focus handling
• MFSA 2017-11/CVE-2017-5433: Use-after-free in SMIL animation functions
• MFSA 2017-11/CVE-2017-5432: Use-after-free in text input selection
• MFSA 2017-11/CVE-2017-5464: Memory corruption with accessibility and DOM manipulation
• MFSA 2017-11/CVE-2017-5465: Out-of-bounds read in ConvolvePixel
• MFSA 2017-11/CVE-2017-5460: Use-after-free in frame selection
• MFSA 2017-11/CVE-2017-5448: Out-of-bounds write in ClearKeyDecryptor
• MFSA 2017-11/CVE-2017-5446: Out-of-bounds read when HTTP/2 DATA frames are sent with incorrect data
• MFSA 2017-11/CVE-2017-5447: Out-of-bounds read during glyph processing
• MFSA 2017-11/CVE-2017-5444: Buffer overflow while parsing application/http-index-format content
• MFSA 2017-11/CVE-2017-5445: Uninitialized values used while parsing application/http-index-format content
• MFSA 2017-11/CVE-2017-5442: Use-after-free during style changes
• MFSA 2017-11/CVE-2017-5443: Out-of-bounds write during BinHex decoding
• MFSA 2017-11/CVE-2017-5440: Use-after-free in txExecutionState destructor during XSLT processing
• MFSA 2017-11/CVE-2017-5441: Use-after-free with selection during scroll events
• MFSA 2017-11/CVE-2017-5459: Buffer overflow in WebGL

Mozilla NSS was updated to 3.29.5, bringing new features and fixing bugs:

• Update to NSS 3.29.5:

  • MFSA 2017-11/CVE-2017-5461: Rare crashes in the base 64 decoder and encoder were fixed.
  • MFSA 2017-11/CVE-2017-5462: A carry over bug in the RNG was fixed.
  • CVE-2016-9574: Remote DoS during session handshake when using SessionTicket extention and ECDHE-ECDSA (bsc#1015499).
  • requires NSPR >= 4.13.1

• Update to NSS 3.29.3

  • enables TLS 1.3 by default

• Fixed a bug in hash computation (and build with GCC 7 which complains about shifts of boolean values). (bsc#1030071, bmo#1348767)

• Update to NSS 3.28.3

  This is a patch release to fix binary compatibility issues.

• Update to NSS 3.28.1

  This is a patch release to update the list of root CA certificates.

  • The following CA certificates were Removed

    CN = Buypass Class 2 CA 1 CN = Root CA Generalitat Valenciana OU = RSA Security 2048 V3

  • The following CA certificates were Added

    OU = AC RAIZ FNMT-RCM CN = Amazon Root CA 1 CN = Amazon Root CA 2 CN = Amazon Root CA 3 CN = Amazon Root CA 4 CN = LuxTrust Global Root 2 CN = Symantec Class 1 Public Primary Certification Authority - G4 CN = Symantec Class 1 Public Primary Certification Authority - G6 CN = Symantec Class 2 Public Primary Certification Authority - G4 CN = Symantec Class 2 Public Primary Certification Authority - G6

  • The version number of the updated root CA list has been set to 2.11

• Update to NSS 3.28

  New functionality:

  • NSS includes support for TLS 1.3 draft -18. This includes a number of improvements to TLS 1.3:

    • The signed certificate timestamp, used in certificate transparency, is supported in TLS 1.3.
    • Key exporters for TLS 1.3 are supported. This includes the early key exporter, which can be used if 0-RTT is…

Mozilla Firefox was updated to the Firefox ESR release 45.9.

Mozilla NSS was updated to support TLS 1.3 (close to release draft) and various new ciphers, PRFs, Diffie Hellman key agreement and support for more hashes.

Security issues fixed in Firefox (bsc#1035082)

• MFSA 2017-11/CVE-2017-5469: Potential Buffer overflow in flex-generated code
• MFSA 2017-11/CVE-2017-5429: Memory safety bugs fixed in Firefox 53, Firefox ESR 45.9, and Firefox ESR 52.1
• MFSA 2017-11/CVE-2017-5439: Use-after-free in nsTArray Length() during XSLT processing
• MFSA 2017-11/CVE-2017-5438: Use-after-free in nsAutoPtr during XSLT processing
• MFSA 2017-11/CVE-2017-5437: Vulnerabilities in Libevent library
• MFSA 2017-11/CVE-2017-5436: Out-of-bounds write with malicious font in Graphite 2
• MFSA 2017-11/CVE-2017-5435: Use-after-free during transaction processing in the editor
• MFSA 2017-11/CVE-2017-5434: Use-after-free during focus handling
• MFSA 2017-11/CVE-2017-5433: Use-after-free in SMIL animation functions
• MFSA 2017-11/CVE-2017-5432: Use-after-free in text input selection
• MFSA 2017-11/CVE-2017-5464: Memory corruption with accessibility and DOM manipulation
• MFSA 2017-11/CVE-2017-5465: Out-of-bounds read in ConvolvePixel
• MFSA 2017-11/CVE-2017-5460: Use-after-free in frame selection
• MFSA 2017-11/CVE-2017-5448: Out-of-bounds write in ClearKeyDecryptor
• MFSA 2017-11/CVE-2017-5446: Out-of-bounds read when HTTP/2 DATA frames are sent with incorrect data
• MFSA 2017-11/CVE-2017-5447: Out-of-bounds read during glyph processing
• MFSA 2017-11/CVE-2017-5444: Buffer overflow while parsing application/http-index-format content
• MFSA 2017-11/CVE-2017-5445: Uninitialized values used while parsing application/http-index-format content
• MFSA 2017-11/CVE-2017-5442: Use-after-free during style changes
• MFSA 2017-11/CVE-2017-5443: Out-of-bounds write during BinHex decoding
• MFSA 2017-11/CVE-2017-5440: Use-after-free in txExecutionState destructor during XSLT processing
• MFSA 2017-11/CVE-2017-5441: Use-after-free with selection during scroll events
• MFSA 2017-11/CVE-2017-5459: Buffer overflow in WebGL

Mozilla NSS was updated to 3.29.5, bringing new features and fixing bugs:

• Update to NSS 3.29.5:

  • MFSA 2017-11/CVE-2017-5461: Rare crashes in the base 64 decoder and encoder were fixed.
  • MFSA 2017-11/CVE-2017-5462: A carry over bug in the RNG was fixed.
  • CVE-2016-9574: Remote DoS during session handshake when using SessionTicket extention and ECDHE-ECDSA (bsc#1015499).
  • requires NSPR >= 4.13.1

• Update to NSS 3.29.3

  • enables TLS 1.3 by default

• Fixed a bug in hash computation (and build with GCC 7 which complains about shifts of boolean values). (bsc#1030071, bmo#1348767)

• Update to NSS 3.28.3

  This is a patch release to fix binary compatibility issues.

• Update to NSS 3.28.1

  This is a patch release to update the list of root CA certificates.

  • The following CA certificates were Removed

    CN = Buypass Class 2 CA 1 CN = Root CA Generalitat Valenciana OU = RSA Security 2048 V3

  • The following CA certificates were Added

    OU = AC RAIZ FNMT-RCM CN = Amazon Root CA 1 CN = Amazon Root CA 2 CN = Amazon Root CA 3 CN = Amazon Root CA 4 CN = LuxTrust Global Root 2 CN = Symantec Class 1 Public Primary Certification Authority - G4 CN = Symantec Class 1 Public Primary Certification Authority - G6 CN = Symantec Class 2 Public Primary Certification Authority - G4 CN = Symantec Class 2 Public Primary Certification Authority - G6

  • The version number of the updated root CA list has been set to 2.11

• Update to NSS 3.28

  New functionality:

  • NSS includes support for TLS 1.3 draft -18. This includes a number of improvements to TLS 1.3:

    • The signed certificate timestamp, used in certificate transparency, is supported in TLS 1.3.
    • Key exporters for TLS 1.3 are supported. This includes the early key exporter, which can be used if 0-RTT is…

Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NSS. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1950)

Bob Clary, Christoph Diehl, Christian Holler, Andrew McCreight, Daniel Holbert, Jesse Ruderman, Randell Jesup, Carsten Book, Gian-Carlo Pascutto, Tyson Smith, Andrea Marchesini, and Jukka Jylänki discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1952, CVE-2016-1953)

Nicolas Golubovic discovered that CSP violation reports can be used to overwrite local files. If a user were tricked in to opening a specially crafted website with addon signing disabled and unpacked addons installed, an attacker could potentially exploit this to gain additional privileges. (CVE-2016-1954)

Muneaki Nishimura discovered that CSP violation reports contained full paths for cross-origin iframe navigations. An attacker could potentially exploit this to steal confidential data. (CVE-2016-1955)

Ucha Gobejishvili discovered that performing certain WebGL operations resulted in memory resource exhaustion with some Intel GPUs, requiring a reboot. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service. (CVE-2016-1956)

Jose Martinez and Romina Santillan discovered a memory leak in libstagefright during MPEG4 video file processing in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via memory exhaustion. (CVE-2016-1957)

Abdulrahman Alqabandi discovered that the addressbar could be blank or filled with page defined content in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to conduct URL spoofing attacks. (CVE-2016-1958)

Looben Yang discovered an out-of-bounds read in Service Worker Manager. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1959)

A use-after-free was discovered in the HTML5 string parser. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1960)

A use-after-free was discovered in the SetBody function of HTMLDocument. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1961)

Dominique Hazaël-Massieux discovered a use-after-free when using multiple WebRTC data channels. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1962)

It was discovered that Firefox crashes when local files are modified whilst being read by the FileReader API. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-1963)

Nicolas Grégoire discovered a use-after-free during XML transformations. If a user were tricked in to…

Francis Gabriel discovered that NSS incorrectly handled decoding certain ASN.1 data. An remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code.

Bob Clary, Christoph Diehl, Christian Holler, Andrew McCreight, Daniel Holbert, Jesse Ruderman, and Randell Jesup discovered multiple memory safety issues in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1952)

Nicolas Golubovic discovered that CSP violation reports can be used to overwrite local files. If a user were tricked in to opening a specially crafted website in a browsing context with addon signing disabled and unpacked addons installed, an attacker could potentially exploit this to gain additional privileges. (CVE-2016-1954)

Jose Martinez and Romina Santillan discovered a memory leak in libstagefright during MPEG4 video file processing in some circumstances. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit this to cause a denial of service via memory exhaustion. (CVE-2016-1957)

A use-after-free was discovered in the HTML5 string parser. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1960)

A use-after-free was discovered in the SetBody function of HTMLDocument. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1961)

Nicolas Grégoire discovered a use-after-free during XML transformations. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1964)

A memory corruption issues was discovered in the NPAPI subsystem. If a user were tricked in to opening a specially crafted website in a browsing context with a malicious plugin installed, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1966)

Ronald Crane discovered an out-of-bounds read following a failed allocation in the HTML parser in some circumstances. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1974)

Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NSS. A remote attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1950)

Holger Fuhrmannek, Tyson Smith and Holger Fuhrmannek reported multiple memory safety issues in the Graphite 2 library. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792, CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-2797, CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-2802)