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.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4202-1 advisory.

    It was discovered that a specially crafted S/MIME message with an inner encryption layer could be     displayed as having a valid signature in some circumstances, even if the signer had no access to the     encrypted message. An attacker could potentially exploit this to spoof the message author.
    (CVE-2019-11755)

    Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially     crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of     service, bypass security restrictions, bypass same-origin restrictions, conduct cross-site scripting (XSS)     attacks, or execute arbitrary code. (CVE-2019-11757, CVE-2019-11758, CVE-2019-11759, CVE-2019-11760,     CVE-2019-11761, CVE-2019-11762, CVE-2019-11763, CVE-2019-11764)

    A heap overflow was discovered in the expat library in Thunderbird. If a user were tricked in to opening a     specially crafted message, an attacker could potentially exploit this to cause a denial of service, or     execute arbitrary code. (CVE-2019-15903)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4335-1 advisory.

    Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially     crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of     service, obtain sensitive information, bypass security restrictions, bypass same-origin restrictions,     conduct cross-site scripting (XSS) attacks, or execute arbitrary code. (CVE-2019-11757, CVE-2019-11758,     CVE-2019-11759, CVE-2019-11760, CVE-2019-11761, CVE-2019-11762, CVE-2019-11763, CVE-2019-11764,     CVE-2019-17005, CVE-2019-17008, CVE-2019-17010, CVE-2019-17011, CVE-2019-17012, CVE-2019-17016,     CVE-2019-17017, CVE-2019-17022, CVE-2019-17024, CVE-2019-17026, CVE-2019-20503, CVE-2020-6798,     CVE-2020-6800, CVE-2020-6805, CVE-2020-6806, CVE-2020-6807, CVE-2020-6812, CVE-2020-6814, CVE-2020-6819,     CVE-2020-6820, CVE-2020-6821, CVE-2020-6825)

    It was discovered that NSS incorrectly handled certain memory operations. A remote attacker could     potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2019-11745)

    It was discovered that a specially crafted S/MIME message with an inner encryption layer could be     displayed as having a valid signature in some circumstances, even if the signer had no access to the     encrypted message. An attacker could potentially exploit this to spoof the message author.
    (CVE-2019-11755)

    A heap overflow was discovered in the expat library in Thunderbird. If a user were tricked in to opening a     specially crafted message, an attacker could potentially exploit this to cause a denial of service, or     execute arbitrary code. (CVE-2019-15903)

    It was discovered that Message ID calculation was based on uninitialized data. An attacker could     potentially exploit this to obtain sensitive information. (CVE-2020-6792)

    Mutiple security issues were discovered 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, obtain     sensitive information, or execute arbitrary code. (CVE-2020-6793, CVE-2020-6795, CVE-2020-6822)

    It was discovered that if a user saved passwords before Thunderbird 60 and then later set a primary     password, an unencrypted copy of these passwords would still be accessible. A local user could exploit     this to obtain sensitive information. (CVE-2020-6794)

    It was discovered that the Devtools Copy as cURL feature did not fully escape website-controlled     data. If a user were tricked in to using the Copy as cURL feature to copy and paste a command with     specially crafted data in to a terminal, an attacker could potentially exploit this to execute arbitrary     commands via command injection. (CVE-2020-6811)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Multiple security issues have been found in Thunderbird which could potentially result in the execution of arbitrary code or denial of service.

Debian follows the Thunderbird upstream releases. Support for the 60.x series has ended, so starting with this update we're now following the 68.x releases.

Multiple security issues have been found in Thunderbird which could potentially result in the execution of arbitrary code or denial of service.

Debian follows the Thunderbird upstream releases. Support for the 60.x series has ended, so starting with this update we're now following the 68.x releases.

For Debian 8 'Jessie', these problems have been fixed in version 1:68.2.2-1~deb8u1.

We recommend that you upgrade your thunderbird packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for MozillaThunderbird to version 68.1.1 fixes the following issues :

  - CVE-2019-11709: Fixed several memory safety bugs.
    (bsc#1140868)

  - CVE-2019-11710: Fixed several memory safety bugs.
    (bsc#1140868)

  - CVE-2019-11711: Fixed a script injection within domain     through inner window reuse. (bsc#1140868)

  - CVE-2019-11712: Fixed an insufficient validation of     cross-origin POST requests within NPAPI plugins.
    (bsc#1140868)

  - CVE-2019-11713: Fixed a use-after-free with HTTP/2     cached stream. (bsc#1140868)

  - CVE-2019-11714: Fixed a crash in NeckoChild.
    (bsc#1140868)

  - CVE-2019-11715: Fixed an HTML parsing error that can     contribute to content XSS. (bsc#1140868)

  - CVE-2019-11716: Fixed an enumeration issue in     globalThis. (bsc#1140868)

  - CVE-2019-11717: Fixed an improper escaping of the caret     character in origins. (bsc#1140868)

  - CVE-2019-11719: Fixed an out-of-bounds read when     importing curve25519 private key. (bsc#1140868)

  - CVE-2019-11720: Fixed a character encoding XSS     vulnerability. (bsc#1140868)

  - CVE-2019-11721: Fixed domain spoofing through unicode     latin 'kra' character. (bsc#1140868)

  - CVE-2019-11723: Fixed a cookie leakage during add-on     fetching across private browsing boundaries.
    (bsc#1140868)

  - CVE-2019-11724: Fixed a permissions issue with the     retired site input.mozilla.org. (bsc#1140868)

  - CVE-2019-11725: Fixed a SafeBrowsing bypass through     WebSockets. (bsc#1140868)

  - CVE-2019-11727: Fixed an insufficient validation for     PKCS#1 v1.5 signatures being used with TLS 1.3.
    (bsc#1140868)

  - CVE-2019-11728: Fixed port scanning through Alt-Svc     header. (bsc#1140868)

  - CVE-2019-11729: Fixed a segmentation fault due to empty     or malformed p256-ECDH public keys. (bsc#1140868)

  - CVE-2019-11730: Fixed an insufficient enforcement of the     same-origin policy that treats all files in a directory     as having the same-origin. (bsc#1140868)

  - CVE-2019-11739: Fixed a Covert Content Attack on S/MIME     encryption using a crafted multipart/alternative     message. (bsc#1150939)

  - CVE-2019-11740: Fixed several memory safety bugs.
    (bsc#1149299)

  - CVE-2019-11742: Fixed a same-origin policy violation     with SVG filters and canvas that enabled theft of     cross-origin images. (bsc#1149303)

  - CVE-2019-11743: Fixed a cross-origin access issue.
    (bsc#1149298)

  - CVE-2019-11744: Fixed a XSS involving breaking out of     title and textarea elements using innerHTML.
    (bsc#1149304)

  - CVE-2019-11746: Fixed a use-after-free while     manipulating video. (bsc#1149297)

  - CVE-2019-11752: Fixed a use-after-free while extracting     a key value in IndexedDB. (bsc#1149296)

  - CVE-2019-11755: Fixed an insufficient validation of     S/MIME messages that allowed the author to be spoofed.
    (bsc#1152375)

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

The version of Thunderbird installed on the remote Windows host is prior to 68.1.1. It is, therefore, affected by a vulnerability as referenced in the mfsa2019-32 advisory.

  - 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.
    (CVE-2019-11755)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 68.1.1. It is, therefore, affected by a vulnerability as referenced in the mfsa2019-32 advisory.

  - 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.
    (CVE-2019-11755)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
196852	RHEL 5 : thunderbird (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	high
183628	Ubuntu 18.04 LTS : Thunderbird vulnerabilities (USN-4202-1)	Nessus	Ubuntu Local Security Checks	high
135896	Ubuntu 16.04 LTS : Thunderbird vulnerabilities (USN-4335-1)	Nessus	Ubuntu Local Security Checks	critical
131139	Debian DSA-4571-1 : thunderbird - security update	Nessus	Debian Local Security Checks	high
131136	Debian DLA-1997-1 : thunderbird security update	Nessus	Debian Local Security Checks	high
129663	openSUSE Security Update : MozillaThunderbird (openSUSE-2019-2249)	Nessus	SuSE Local Security Checks	critical
129662	openSUSE Security Update : MozillaThunderbird (openSUSE-2019-2248)	Nessus	SuSE Local Security Checks	critical
129390	Mozilla Thunderbird < 68.1.1	Nessus	Windows	high
129389	Mozilla Thunderbird < 68.1.1	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2019-11755

high

Tenable Plugins

high

high

critical

high

high

critical

critical

high

high