USN-2973-1: Thunderbird vulnerabilities

Releases

• Ubuntu 16.04 ESM
• Ubuntu 15.10
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• thunderbird - Mozilla Open Source mail and newsgroup client

Details

Christian Holler, Tyson Smith, and Phil Ringalda 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. (CVE-2016-2805, CVE-2016-2807)

Hanno Böck discovered that calculations with mp_div and mp_exptmod in NSS
produce incorrect results in some circumstances, resulting in
cryptographic weaknesses. (CVE-2016-1938)

A use-after-free was discovered in ssl3_HandleECDHServerKeyExchange in
NSS. A remote attacker could potentially exploit this to cause a denial of
service via application crash, or execute arbitrary code. (CVE-2016-1978)

A use-after-free was discovered in PK11_ImportDERPrivateKeyInfoAndReturnKey
in NSS. A remote attacker could potentially exploit this to cause a denial
of service via application crash, or execute arbitrary code.
(CVE-2016-1979)

Update instructions

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

Ubuntu 16.04

• thunderbird - 1:38.8.0+build1-0ubuntu0.16.04.1

Ubuntu 15.10

• thunderbird - 1:38.8.0+build1-0ubuntu0.15.10.1

Ubuntu 14.04

• thunderbird - 1:38.8.0+build1-0ubuntu0.14.04.1

Ubuntu 12.04

• thunderbird - 1:38.8.0+build1-0ubuntu0.12.04.1

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

References

• CVE-2016-1938
• CVE-2016-1978
• CVE-2016-1979
• CVE-2016-2805
• CVE-2016-2807

Related notices

• USN-2880-1: firefox-locale-fy, firefox-locale-en, firefox-locale-mr, firefox-locale-lv, firefox-locale-oc, firefox-locale-el, firefox-locale-br, firefox-locale-da, firefox-locale-lg, firefox-locale-ro, firefox-locale-csb, firefox-locale-nl, firefox-locale-ja, firefox-locale-mai, firefox-locale-sq, firefox-locale-gu, firefox-locale-ms, firefox-locale-mn, firefox-locale-tr, firefox-locale-az, firefox-locale-cy, firefox-locale-ast, firefox-locale-nn, firefox-locale-et, firefox-locale-eo, firefox-locale-sr, firefox-locale-cs, firefox-locale-ga, firefox-locale-gd, firefox-locale-hi, firefox-locale-pa, firefox-locale-hy, firefox-locale-bs, firefox-locale-pl, firefox-locale-ca, firefox-locale-gl, firefox-locale-as, firefox-locale-bn, firefox-locale-ml, firefox-locale-nso, firefox-locale-xh, firefox-locale-be, firefox-locale-ko, firefox-locale-km, firefox-locale-ru, firefox-locale-de, firefox-locale-fa, firefox-locale-uz, firefox-locale-kn, firefox-globalmenu, firefox-locale-zh-hans, firefox-locale-mk, firefox-locale-th, firefox-locale-ar, firefox-locale-bg, firefox-locale-sw, firefox-locale-af, firefox-locale-zh-hant, firefox-locale-nb, firefox-mozsymbols, firefox-locale-id, firefox-locale-hu, firefox, firefox-locale-te, firefox-locale-or, firefox-locale-zu, firefox-locale-it, firefox-locale-kk, firefox-locale-si, firefox-locale-sv, firefox-locale-es, firefox-locale-hr, firefox-locale-ku, firefox-locale-hsb, firefox-locale-lt, firefox-locale-uk, firefox-locale-ta, firefox-locale-eu, firefox-locale-vi, firefox-testsuite, firefox-locale-fi, firefox-dev, firefox-locale-sk, firefox-locale-he, firefox-locale-is, firefox-locale-ka, firefox-locale-an, firefox-locale-sl, firefox-locale-pt, firefox-locale-fr
• USN-2903-1: libnss3, nss, libnss3-tools, libnss3-nssdb, libnss3-1d, libnss3-dev
• USN-2936-1: firefox-locale-fy, firefox-locale-en, firefox-locale-mr, firefox-locale-lv, firefox-locale-oc, firefox-locale-el, firefox-locale-br, firefox-locale-da, firefox-locale-lg, firefox-locale-ro, firefox-locale-csb, firefox-locale-nl, firefox-locale-ja, firefox-locale-mai, firefox-locale-sq, firefox-locale-gu, firefox-locale-ms, firefox-locale-mn, firefox-locale-tr, firefox-locale-az, firefox-locale-cy, firefox-locale-ast, firefox-locale-nn, firefox-locale-et, firefox-locale-eo, firefox-locale-sr, firefox-locale-cs, firefox-locale-ga, firefox-locale-gd, firefox-locale-gn, firefox-locale-hi, firefox-locale-pa, firefox-locale-hy, firefox-locale-bs, firefox-locale-pl, firefox-locale-ca, firefox-locale-gl, firefox-locale-as, firefox-locale-bn, firefox-locale-ml, firefox-locale-nso, firefox-locale-xh, firefox-locale-be, firefox-locale-ko, firefox-locale-km, firefox-locale-ru, firefox-locale-de, firefox-locale-fa, firefox-locale-uz, firefox-locale-kn, firefox-globalmenu, firefox-locale-zh-hans, firefox-locale-mk, firefox-locale-th, firefox-locale-ar, firefox-locale-bg, firefox-locale-sw, firefox-locale-af, firefox-locale-zh-hant, firefox-locale-nb, firefox-mozsymbols, firefox-locale-id, firefox-locale-hu, firefox, firefox-locale-te, firefox-locale-or, firefox-locale-zu, firefox-locale-it, firefox-locale-kk, firefox-locale-si, firefox-locale-sv, firefox-locale-es, firefox-locale-hr, firefox-locale-ku, firefox-locale-hsb, firefox-locale-lt, firefox-locale-uk, firefox-locale-ta, firefox-locale-eu, firefox-locale-vi, firefox-testsuite, firefox-locale-fi, firefox-dev, firefox-locale-sk, firefox-locale-he, firefox-locale-is, firefox-locale-ka, firefox-locale-an, firefox-locale-sl, firefox-locale-pt, firefox-locale-fr