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USN-4335-1: Thunderbird vulnerabilities

21 April 2020

Several security issues were fixed in Thunderbird.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

Packages

  • thunderbird - Mozilla Open Source mail and newsgroup client

Details

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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04

After a standard system update you need to restart Thunderbird to make
all the necessary changes.

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  • USN-4278-2: firefox-locale-ast, firefox-locale-cs, firefox-locale-km, firefox-locale-pt, firefox-locale-sr, firefox-locale-fa, firefox-locale-ru, firefox-locale-es, firefox-locale-br, firefox-locale-fi, firefox-locale-sw, firefox-locale-csb, firefox-locale-bn, firefox-locale-id, firefox-locale-ur, firefox-locale-eo, firefox-locale-uz, firefox-locale-cak, firefox-locale-zu, firefox-locale-sl, firefox-locale-ml, firefox-locale-my, firefox-locale-vi, firefox-locale-uk, firefox-locale-hu, firefox-locale-ca, firefox-locale-ne, firefox-locale-af, firefox-mozsymbols, firefox-locale-si, firefox-geckodriver, firefox-locale-th, firefox-locale-mn, firefox-locale-az, firefox-locale-zh-hans, firefox-locale-nb, firefox-locale-oc, firefox-locale-or, firefox-locale-ga, firefox-locale-ku, firefox-dev, firefox-locale-lv, firefox-locale-sq, firefox-locale-fy, firefox-locale-fr, firefox-locale-ta, firefox-locale-ro, firefox-locale-ms, firefox-locale-ko, firefox-locale-nn, firefox-locale-sk, firefox-locale-zh-hant, firefox, firefox-locale-it, firefox-locale-et, firefox-locale-as, firefox-locale-gu, firefox-locale-pa, firefox-locale-hy, firefox-locale-mr, firefox-locale-el, firefox-locale-is, firefox-locale-ia, firefox-locale-sv, firefox-locale-gn, firefox-locale-nl, firefox-locale-kab, firefox-locale-an, firefox-locale-ar, firefox-locale-kn, firefox-locale-lt, firefox-locale-mai, firefox-locale-mk, firefox-locale-lg, firefox-locale-eu, firefox-locale-hr, firefox-locale-be, firefox-locale-ja, firefox-locale-hsb, firefox-locale-xh, firefox-locale-pl, firefox-locale-he, firefox-locale-bg, firefox-locale-gd, firefox-locale-cy, firefox-locale-tr, firefox-locale-de, firefox-locale-en, firefox-locale-te, firefox-locale-ka, firefox-locale-bs, firefox-locale-kk, firefox-locale-hi, firefox-locale-nso, firefox-locale-da, firefox-locale-gl
  • USN-4317-1: firefox-locale-ast, firefox-locale-cs, firefox-locale-km, firefox-locale-pt, firefox-locale-sr, firefox-locale-fa, firefox-locale-ru, firefox-locale-es, firefox-locale-br, firefox-locale-fi, firefox-locale-sw, firefox-locale-csb, firefox-locale-bn, firefox-locale-id, firefox-locale-ur, firefox-locale-eo, firefox-locale-uz, firefox-locale-cak, firefox-locale-zu, firefox-locale-sl, firefox-locale-ml, firefox-locale-my, firefox-locale-vi, firefox-locale-uk, firefox-locale-hu, firefox-locale-ca, firefox-locale-ne, firefox-locale-af, firefox-mozsymbols, firefox-locale-si, firefox-geckodriver, firefox-locale-th, firefox-locale-mn, firefox-locale-az, firefox-locale-zh-hans, firefox-locale-nb, firefox-locale-oc, firefox-locale-or, firefox-locale-ga, firefox-locale-ku, firefox-dev, firefox-locale-lv, firefox-locale-sq, firefox-locale-fy, firefox-locale-fr, firefox-locale-ta, firefox-locale-ro, firefox-locale-ms, firefox-locale-ko, firefox-locale-nn, firefox-locale-sk, firefox-locale-zh-hant, firefox, firefox-locale-it, firefox-locale-et, firefox-locale-as, firefox-locale-gu, firefox-locale-pa, firefox-locale-hy, firefox-locale-mr, firefox-locale-el, firefox-locale-is, firefox-locale-ia, firefox-locale-sv, firefox-locale-gn, firefox-locale-nl, firefox-locale-kab, firefox-locale-an, firefox-locale-ar, firefox-locale-kn, firefox-locale-lt, firefox-locale-mai, firefox-locale-mk, firefox-locale-lg, firefox-locale-eu, firefox-locale-hr, firefox-locale-be, firefox-locale-ja, firefox-locale-hsb, firefox-locale-xh, firefox-locale-pl, firefox-locale-he, firefox-locale-bg, firefox-locale-gd, firefox-locale-cy, firefox-locale-tr, firefox-locale-de, firefox-locale-en, firefox-locale-te, firefox-locale-ka, firefox-locale-bs, firefox-locale-kk, firefox-locale-hi, firefox-locale-nso, firefox-locale-da, firefox-locale-gl
  • USN-4323-1: firefox-locale-ast, firefox-locale-cs, firefox-locale-km, firefox-locale-pt, firefox-locale-sr, firefox-locale-fa, firefox-locale-ru, firefox-locale-es, firefox-locale-br, firefox-locale-fi, firefox-locale-sw, firefox-locale-csb, firefox-locale-bn, firefox-locale-id, firefox-locale-ur, firefox-locale-eo, firefox-locale-uz, firefox-locale-cak, firefox-locale-zu, firefox-locale-sl, firefox-locale-ml, firefox-locale-my, firefox-locale-vi, firefox-locale-uk, firefox-locale-hu, firefox-locale-ca, firefox-locale-ne, firefox-locale-af, firefox-mozsymbols, firefox-locale-si, firefox-geckodriver, firefox-locale-th, firefox-locale-mn, firefox-locale-az, firefox-locale-zh-hans, firefox-locale-nb, firefox-locale-oc, firefox-locale-or, firefox-locale-ga, firefox-locale-ku, firefox-dev, firefox-locale-lv, firefox-locale-sq, firefox-locale-fy, firefox-locale-fr, firefox-locale-ta, firefox-locale-ro, firefox-locale-ms, firefox-locale-ko, firefox-locale-nn, firefox-locale-sk, firefox-locale-zh-hant, firefox, firefox-locale-it, firefox-locale-et, firefox-locale-as, firefox-locale-gu, firefox-locale-pa, firefox-locale-hy, firefox-locale-mr, firefox-locale-el, firefox-locale-is, firefox-locale-ia, firefox-locale-sv, firefox-locale-gn, firefox-locale-nl, firefox-locale-kab, firefox-locale-an, firefox-locale-ar, firefox-locale-kn, firefox-locale-lt, firefox-locale-mai, firefox-locale-mk, firefox-locale-lg, firefox-locale-eu, firefox-locale-hr, firefox-locale-be, firefox-locale-ja, firefox-locale-hsb, firefox-locale-xh, firefox-locale-pl, firefox-locale-he, firefox-locale-bg, firefox-locale-gd, firefox-locale-cy, firefox-locale-tr, firefox-locale-de, firefox-locale-en, firefox-locale-te, firefox-locale-ka, firefox-locale-bs, firefox-locale-kk, firefox-locale-hi, firefox-locale-nso, firefox-locale-da, firefox-locale-gl