USN-4064-1: Thunderbird vulnerabilities

17 July 2019

Several security issues were fixed in Thunderbird.



  • thunderbird - Mozilla Open Source mail and newsgroup client


A sandbox escape was discovered in Thunderbird. If a user were tricked in to
installing a malicious language pack, an attacker could exploit this to
gain additional privileges. (CVE-2019-9811)

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 same origin restrictions, conduct cross-site scripting (XSS)
attacks, spoof origin attributes, or execute arbitrary code.
(CVE-2019-11709, CVE-2019-11711, CVE-2019-11712, CVE-2019-11713,
CVE-2019-11715, CVE-2019-11717)

It was discovered that NSS incorrectly handled importing certain
curve25519 private keys. An attacker could exploit this issue to cause
Thunderbird to crash, resulting in a denial of service, or possibly
obtain sensitive information. (CVE-2019-11719)

It was discovered that NSS incorrectly handled certain p256-ECDH public
keys. An attacker could possibly exploit this issue to cause Thunderbird
to crash, resulting in a denial of service. (CVE-2019-11729)

It was discovered that Thunderbird treats all files in a directory as same
origin. If a user were tricked in to downloading a specially crafted HTML
file, an attacker could potentially exploit this to obtain sensitive
information from local files. (CVE-2019-11730)

Update instructions

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

Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04

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

Related notices

  • USN-4054-1: firefox-locale-my, firefox-locale-nso, firefox-locale-mk, firefox-locale-lg, firefox-locale-uz, firefox-locale-is, firefox-locale-ar, firefox-locale-sr, firefox-locale-ml, firefox, firefox-locale-fr, firefox-locale-nn, firefox-locale-te, firefox-locale-af, firefox-locale-csb, firefox-locale-bg, firefox-locale-ru, firefox-locale-hi, firefox-locale-ia, firefox-locale-oc, firefox-locale-gu, firefox-locale-gl, firefox-locale-ca, firefox-locale-fy, firefox-locale-ku, firefox-locale-th, firefox-locale-ur, firefox-locale-tr, firefox-locale-hr, firefox-locale-as, firefox-locale-kk, firefox-locale-da, firefox-locale-km, firefox-locale-be, firefox-locale-es, firefox-locale-pl, firefox-locale-cy, firefox-locale-zu, firefox-locale-lt, firefox-locale-sk, firefox-locale-gd, firefox-locale-an, firefox-locale-ne, firefox-globalmenu, firefox-locale-ast, firefox-locale-id, firefox-locale-en, firefox-locale-az, firefox-locale-kab, firefox-locale-hsb, firefox-locale-sv, firefox-locale-de, firefox-locale-ko, firefox-locale-eo, firefox-locale-or, firefox-locale-si, firefox-locale-cak, firefox-locale-el, firefox-locale-ro, firefox-locale-hy, firefox-locale-kn, firefox-locale-cs, firefox-locale-ms, firefox-locale-mai, firefox-locale-mr, firefox-locale-he, firefox-locale-zh-hant, firefox-locale-zh-hans, firefox-locale-bn, firefox-locale-xh, firefox-locale-uk, firefox-locale-fa, firefox-locale-nl, firefox-mozsymbols, firefox-locale-pa, firefox-dev, firefox-locale-nb, firefox-locale-pt, firefox-locale-gn, firefox-locale-fi, firefox-locale-ja, firefox-geckodriver, firefox-locale-sw, firefox-locale-hu, firefox-locale-mn, firefox-locale-ka, firefox-locale-vi, firefox-locale-sl, firefox-locale-ta, firefox-locale-it, firefox-locale-eu, firefox-locale-sq, firefox-locale-lv, firefox-locale-ga, firefox-locale-br, firefox-locale-et, firefox-locale-bs
  • USN-4060-1: libnss3-tools, nss, libnss3-1d, libnss3, libnss3-nssdb, libnss3-dev
  • USN-4060-2: libnss3-tools, nss, libnss3-1d, libnss3, libnss3-nssdb, libnss3-dev