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USN-3372-1: NSS vulnerability

31 July 2017

Several security issues were fixed in NSS.

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Releases

Packages

  • nss - Network Security Service library

Details

It was discovered that NSS incorrectly handled certain empty SSLv2
messages. A remote attacker could possibly use this issue to cause NSS to
crash, resulting in a denial of service. (CVE-2017-7502)

Karthik Bhargavan and Gaetan Leurent discovered that the DES and Triple DES
ciphers were vulnerable to birthday attacks. A remote attacker could
possibly use this flaw to obtain clear text data from long encrypted
sessions. This update causes NSS to limit use of the same symmetric key.
(CVE-2016-2183)

It was discovered that NSS incorrectly handled Base64 decoding. A remote
attacker could use this flaw to cause NSS to crash, resulting in a denial
of service, or possibly execute arbitrary code. (CVE-2017-5461)

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 12.04

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use NSS, such as Evolution and Chromium, to make all the necessary
changes.

Related notices

  • USN-3336-1: libnss3, nss, libnss3-tools, libnss3-dev, libnss3-1d, libnss3-nssdb
  • USN-3198-1: icedtea-6-jre-jamvm, openjdk-6-jdk, openjdk-6, openjdk-6-jre-headless, openjdk-6-jre-zero, openjdk-6-jre-lib, openjdk-6-jre, icedtea-6-jre-cacao
  • USN-3179-1: openjdk-8, openjdk-8-doc, openjdk-8-source, openjdk-8-jre-headless, openjdk-8-jre, openjdk-8-jre-jamvm, openjdk-8-jre-zero, openjdk-8-jdk, openjdk-8-jdk-headless, openjdk-8-demo
  • USN-3270-1: libnss3, nss, libnss3-tools, libnss3-dev, libnss3-1d, libnss3-nssdb
  • USN-3087-1: libssl-doc, libcrypto1.0.0-udeb, libssl1.0.0-udeb, libssl-dev, openssl, libssl1.0.0
  • USN-3194-1: openjdk-7-doc, openjdk-7-jdk, openjdk-7-demo, openjdk-7-jre, openjdk-7-jre-headless, openjdk-7-jre-lib, openjdk-7-jre-zero, openjdk-7, openjdk-7-source, icedtea-7-jre-jamvm
  • USN-3278-1: thunderbird-locale-pa-in, thunderbird-locale-nn-no, thunderbird-dev, thunderbird-locale-id, thunderbird-locale-eu, thunderbird-locale-af, thunderbird-locale-ka, thunderbird-locale-en, thunderbird-mozsymbols, thunderbird-locale-zh-tw, thunderbird-locale-ar, thunderbird-locale-dsb, thunderbird-locale-pt-br, thunderbird-locale-vi, thunderbird-locale-fy-nl, thunderbird-locale-nl, thunderbird-locale-cs, thunderbird-locale-pt, thunderbird-locale-sv, xul-ext-lightning, thunderbird-locale-is, thunderbird-locale-lt, thunderbird-locale-ko, xul-ext-calendar-timezones, thunderbird-locale-ga, thunderbird-locale-hsb, thunderbird-locale-rm, thunderbird-locale-gl, thunderbird-locale-uk, thunderbird-locale-sl, thunderbird-locale-gd, thunderbird-testsuite, thunderbird-locale-ast, thunderbird-locale-es-es, thunderbird-locale-de, thunderbird-locale-ca, thunderbird-locale-sv-se, thunderbird-locale-nn, thunderbird-locale-br, thunderbird-locale-ta-lk, thunderbird-locale-it, thunderbird-locale-sq, thunderbird-locale-zh-hant, thunderbird-locale-zh-cn, thunderbird-locale-es-ar, thunderbird-locale-ja, thunderbird-locale-hr, thunderbird-locale-da, thunderbird-locale-en-gb, thunderbird-locale-he, thunderbird-locale-ga-ie, thunderbird-locale-si, xul-ext-gdata-provider, thunderbird-locale-fr, thunderbird-locale-bn-bd, thunderbird-locale-pt-pt, thunderbird-locale-tr, thunderbird-locale-fy, thunderbird-locale-pl, thunderbird-locale-nb-no, thunderbird-locale-mk, thunderbird-locale-bg, thunderbird-locale-es, thunderbird-locale-pa, thunderbird-locale-sr, thunderbird-locale-en-us, thunderbird-locale-zh-hans, thunderbird, thunderbird-locale-nb, thunderbird-locale-hu, thunderbird-locale-el, thunderbird-locale-ru, thunderbird-locale-hy, thunderbird-gnome-support, thunderbird-locale-kab, thunderbird-locale-fi, thunderbird-globalmenu, thunderbird-locale-ro, thunderbird-locale-sk, thunderbird-locale-et, thunderbird-locale-be, thunderbird-locale-bn, thunderbird-locale-ta, thunderbird-locale-cy
  • USN-3260-1: firefox-locale-de, firefox-locale-lg, firefox-locale-hsb, firefox-locale-hu, firefox-locale-lt, firefox-locale-eu, firefox-locale-an, firefox-locale-fr, firefox-locale-xh, firefox-locale-kk, firefox-locale-be, firefox-locale-mai, firefox-locale-gn, firefox-locale-uk, firefox-locale-bs, firefox-locale-pa, firefox-locale-zu, firefox-locale-ro, firefox-locale-sv, firefox-locale-ru, firefox-locale-sl, firefox-locale-el, firefox-locale-oc, firefox-locale-sr, firefox-locale-he, firefox-locale-gu, firefox-locale-eo, firefox-locale-kn, firefox-locale-hy, firefox-locale-tr, firefox-locale-csb, firefox-locale-it, firefox-locale-hi, firefox-locale-hr, firefox-locale-as, firefox-locale-gl, firefox-locale-az, firefox-locale-bg, firefox-locale-ka, firefox-locale-sq, firefox-dev, firefox-locale-nso, firefox-locale-ms, firefox-locale-et, firefox-locale-id, firefox-locale-ml, firefox-locale-fa, firefox-locale-ga, firefox-locale-gd, firefox-locale-ca, firefox-locale-es, firefox-locale-nn, firefox-locale-bn, firefox-testsuite, firefox-locale-pl, firefox-locale-km, firefox, firefox-locale-cy, firefox-locale-mk, firefox-locale-cak, firefox-locale-fy, firefox-locale-kab, firefox-locale-lv, firefox-locale-uz, firefox-locale-nb, firefox-locale-ar, firefox-locale-en, firefox-locale-zh-hant, firefox-locale-ur, firefox-locale-af, firefox-locale-pt, firefox-locale-br, firefox-locale-zh-hans, firefox-locale-is, firefox-locale-da, firefox-locale-sk, firefox-locale-mn, firefox-locale-nl, firefox-locale-sw, firefox-locale-ko, firefox-globalmenu, firefox-mozsymbols, firefox-locale-th, firefox-locale-te, firefox-locale-ja, firefox-locale-or, firefox-locale-si, firefox-locale-ast, firefox-locale-ku, firefox-locale-mr, firefox-locale-ta, firefox-locale-fi, firefox-locale-vi, firefox-locale-cs