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USN-2696-1: OpenJDK 7 vulnerabilities

30 July 2015

Several security issues were fixed in OpenJDK 7.

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Releases

Packages

  • openjdk-7 - Open Source Java implementation

Details

Several vulnerabilities were discovered in the OpenJDK JRE related to
information disclosure, data integrity, and availability. An attacker
could exploit these to cause a denial of service or expose sensitive
data over the network. (CVE-2015-2590, CVE-2015-2628, CVE-2015-4731,
CVE-2015-4732, CVE-2015-4733, CVE-2015-4760, CVE-2015-4748)

Several vulnerabilities were discovered in the cryptographic components
of the OpenJDK JRE. An attacker could exploit these to expose sensitive
data over the network. (CVE-2015-2601, CVE-2015-2808, CVE-2015-4000,
CVE-2015-2625, CVE-2015-2613)

As a security improvement, this update modifies OpenJDK behavior to
disable RC4 TLS/SSL cipher suites by default.

As a security improvement, this update modifies OpenJDK behavior to
reject DH key sizes below 768 bits by default, preventing a possible
downgrade attack.

Several vulnerabilities were discovered in the OpenJDK JRE related
to information disclosure. An attacker could exploit these to expose
sensitive data over the network. (CVE-2015-2621, CVE-2015-2632)

A vulnerability was discovered with how the JNDI component of the
OpenJDK JRE handles DNS resolutions. A remote attacker could exploit
this to cause a denial of service. (CVE-2015-4749)

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 15.04
Ubuntu 14.04

This update uses a new upstream release, which includes additional
bug fixes. After a standard system update you need to restart any
Java applications or applets to make all the necessary changes.

Related notices

  • 2696-1: icedtea-7-jre-jamvm, openjdk-7-jre-lib, openjdk-7-jre-zero, openjdk-7-jre, openjdk-7-jre-headless, openjdk-7-jdk, openjdk-7
  • USN-2706-1: openjdk-6-jre-headless, openjdk-6, openjdk-6-jdk, openjdk-6-jre-zero, icedtea-6-jre-jamvm, openjdk-6-jre, openjdk-6-source, icedtea-6-jre-cacao, openjdk-6-jre-lib
  • USN-2740-1: icu-devtools, icu, icu-doc, libicu52, libicu-dev, libicu48
  • USN-2673-1: thunderbird-locale-en, thunderbird-locale-pt-br, thunderbird-locale-ar, thunderbird-locale-pt, xul-ext-lightning, thunderbird-locale-rm, thunderbird-locale-sq, thunderbird-globalmenu, thunderbird-locale-gd, thunderbird-locale-pa-in, thunderbird-locale-bg, xul-ext-gdata-provider, thunderbird-locale-fi, thunderbird-locale-sv-se, thunderbird-locale-fy-nl, thunderbird-locale-ta, thunderbird-locale-si, thunderbird-locale-sl, thunderbird-locale-sk, thunderbird-locale-fr, thunderbird-locale-cs, thunderbird-locale-zh-hans, thunderbird-locale-ca, thunderbird-locale-pa, thunderbird-locale-el, thunderbird-locale-nl, thunderbird-locale-mk, thunderbird-locale-de, thunderbird-locale-ast, thunderbird-locale-lt, thunderbird-locale-pl, thunderbird-locale-sv, thunderbird-locale-zh-cn, thunderbird-locale-ja, thunderbird-locale-uk, thunderbird-locale-et, thunderbird-locale-zh-tw, thunderbird-locale-id, thunderbird-locale-ka, thunderbird-locale-sr, thunderbird-locale-hu, thunderbird-locale-be, thunderbird-locale-da, thunderbird-locale-ko, thunderbird-locale-bn-bd, thunderbird-locale-it, thunderbird-locale-pt-pt, thunderbird-locale-fy, thunderbird-locale-br, thunderbird-locale-ta-lk, thunderbird-locale-bn, thunderbird-testsuite, thunderbird-locale-vi, thunderbird-dev, thunderbird, thunderbird-locale-he, thunderbird-locale-en-us, thunderbird-locale-ga-ie, thunderbird-locale-zh-hant, thunderbird-locale-af, thunderbird-locale-is, thunderbird-locale-es-ar, thunderbird-locale-ru, thunderbird-locale-ro, thunderbird-locale-tr, thunderbird-locale-es, thunderbird-gnome-support, thunderbird-locale-nn, thunderbird-locale-hr, thunderbird-locale-nb, thunderbird-locale-gl, thunderbird-locale-en-gb, thunderbird-locale-es-es, thunderbird-locale-eu, thunderbird-locale-nn-no, thunderbird-locale-nb-no, thunderbird-mozsymbols, xul-ext-calendar-timezones, thunderbird-locale-hy, thunderbird-locale-ga
  • USN-2656-1: firefox-locale-it, firefox-locale-hr, firefox-locale-id, firefox-locale-ar, firefox-locale-es, firefox-dev, firefox-locale-lg, firefox-locale-lt, firefox-locale-de, firefox-locale-th, firefox-locale-uz, firefox-locale-fr, firefox-locale-gu, firefox-locale-en, firefox-locale-nso, firefox-locale-da, firefox-locale-eu, firefox-locale-xh, firefox-locale-br, firefox-locale-cs, firefox-locale-cy, firefox-locale-nb, firefox-locale-sv, firefox-locale-fi, firefox-locale-af, firefox, firefox-locale-nl, firefox-testsuite, firefox-locale-hu, firefox-locale-be, firefox-locale-csb, firefox-locale-ga, firefox-locale-he, firefox-locale-bg, firefox-locale-ku, firefox-locale-mai, firefox-locale-or, firefox-locale-ko, firefox-locale-mr, firefox-locale-sq, firefox-locale-eo, firefox-locale-az, firefox-locale-an, firefox-locale-ast, firefox-locale-hsb, firefox-locale-gd, firefox-locale-as, firefox-locale-ca, firefox-locale-bs, firefox-locale-kk, firefox-locale-si, firefox-globalmenu, firefox-locale-zh-hans, firefox-locale-te, firefox-locale-pl, firefox-locale-ka, firefox-locale-vi, firefox-locale-mk, firefox-locale-ro, firefox-locale-sl, firefox-locale-fa, firefox-locale-ms, firefox-locale-zu, firefox-locale-el, firefox-locale-kn, firefox-locale-bn, firefox-locale-sr, firefox-locale-pa, firefox-locale-lv, firefox-locale-hy, firefox-locale-fy, firefox-locale-sk, firefox-locale-ru, firefox-locale-gl, firefox-locale-hi, firefox-mozsymbols, firefox-locale-ja, firefox-locale-nn, firefox-locale-uk, firefox-locale-zh-hant, firefox-locale-tr, firefox-locale-ml, firefox-locale-ta, firefox-locale-is, firefox-locale-mn, firefox-locale-sw, firefox-locale-et, firefox-locale-pt, firefox-locale-km, firefox-locale-oc
  • USN-2656-2: firefox