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USN-2866-1: Firefox vulnerability

8 January 2016

Firefox could be made to expose sensitive information over the network.

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Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

Karthikeyan Bhargavan and Gaetan Leurent discovered that NSS incorrectly
allowed MD5 to be used for TLS 1.2 connections. If a remote attacker were
able to perform a machine-in-the-middle attack, this flaw could be exploited to
view sensitive information.

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 15.10
Ubuntu 15.04
Ubuntu 14.04
Ubuntu 12.04

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

References

Related notices

  • USN-2904-1: thunderbird-locale-el, thunderbird-locale-lt, thunderbird-locale-it, thunderbird-locale-zh-tw, thunderbird-locale-mk, thunderbird-locale-ca, thunderbird-locale-et, thunderbird-locale-af, thunderbird-locale-bn-bd, thunderbird-locale-ja, xul-ext-calendar-timezones, thunderbird-locale-zh-cn, thunderbird-locale-bg, thunderbird, thunderbird-locale-br, thunderbird-locale-es-ar, thunderbird-locale-pa-in, thunderbird-locale-en-us, thunderbird-locale-hsb, thunderbird-locale-hu, thunderbird-locale-si, thunderbird-locale-fy, thunderbird-locale-tr, thunderbird-locale-hr, thunderbird-locale-en, thunderbird-locale-be, thunderbird-locale-es, thunderbird-locale-zh-hant, thunderbird-gnome-support, thunderbird-locale-ta-lk, thunderbird-locale-ka, thunderbird-locale-ga, thunderbird-locale-sr, thunderbird-locale-sv-se, thunderbird-locale-bn, thunderbird-locale-he, thunderbird-locale-nn-no, thunderbird-locale-dsb, thunderbird-locale-ar, thunderbird-locale-eu, thunderbird-locale-ro, thunderbird-locale-ru, thunderbird-locale-nn, thunderbird-locale-pt-pt, thunderbird-locale-zh-hans, thunderbird-locale-sk, thunderbird-locale-nb, xul-ext-gdata-provider, xul-ext-lightning, thunderbird-locale-sl, thunderbird-locale-da, thunderbird-locale-is, thunderbird-locale-pl, thunderbird-locale-nl, thunderbird-locale-cs, thunderbird-dev, thunderbird-locale-ta, thunderbird-testsuite, thunderbird-locale-fr, thunderbird-locale-pt, thunderbird-locale-id, thunderbird-globalmenu, thunderbird-locale-uk, thunderbird-locale-sq, thunderbird-locale-fi, thunderbird-locale-pt-br, thunderbird-locale-en-gb, thunderbird-locale-es-es, thunderbird-locale-rm, thunderbird-locale-gd, thunderbird-locale-gl, thunderbird-locale-vi, thunderbird-locale-ga-ie, thunderbird-mozsymbols, thunderbird-locale-ko, thunderbird-locale-cy, thunderbird-locale-hy, thunderbird-locale-ast, thunderbird-locale-fy-nl, thunderbird-locale-de, thunderbird-locale-pa, thunderbird-locale-nb-no, thunderbird-locale-sv
  • USN-2863-1: libssl1.0.0, openssl
  • USN-2865-1: gnutls26, gnutls26-doc, libgnutlsxx27, libgnutls-deb0-28, libgnutlsxx28, libgnutls-openssl27, gnutls-bin, libgnutls-dev, gnutls28, libgnutls26
  • USN-2884-1: openjdk-7, openjdk-7-jdk, openjdk-7-jre, icedtea-7-jre-jamvm, openjdk-7-demo, openjdk-7-doc, openjdk-7-source, openjdk-7-jre-headless, openjdk-7-jre-lib, openjdk-7-jre-zero
  • USN-2864-1: libnss3-nssdb, libnss3-1d, libnss3-tools, nss, libnss3-dev, libnss3