USN-2696-1: OpenJDK 7 vulnerabilities

Releases

• Ubuntu 15.04
• Ubuntu 14.04 ESM

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)

Update instructions

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

Ubuntu 15.04

• icedtea-7-jre-jamvm - 7u79-2.5.6-0ubuntu1.15.04.1
• openjdk-7-jdk - 7u79-2.5.6-0ubuntu1.15.04.1
• openjdk-7-jre - 7u79-2.5.6-0ubuntu1.15.04.1
• openjdk-7-jre-headless - 7u79-2.5.6-0ubuntu1.15.04.1
• openjdk-7-jre-lib - 7u79-2.5.6-0ubuntu1.15.04.1
• openjdk-7-jre-zero - 7u79-2.5.6-0ubuntu1.15.04.1

Ubuntu 14.04

• icedtea-7-jre-jamvm - 7u79-2.5.6-0ubuntu1.14.04.1
• openjdk-7-jdk - 7u79-2.5.6-0ubuntu1.14.04.1
• openjdk-7-jre - 7u79-2.5.6-0ubuntu1.14.04.1
• openjdk-7-jre-headless - 7u79-2.5.6-0ubuntu1.14.04.1
• openjdk-7-jre-lib - 7u79-2.5.6-0ubuntu1.14.04.1
• openjdk-7-jre-zero - 7u79-2.5.6-0ubuntu1.14.04.1

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.

References

• CVE-2015-2808
• CVE-2015-2625
• CVE-2015-4760
• CVE-2015-2601
• CVE-2015-4748
• CVE-2015-4749
• CVE-2015-2613
• CVE-2015-2621
• CVE-2015-4000
• CVE-2015-2628
• CVE-2015-4731
• CVE-2015-2590
• CVE-2015-4732
• CVE-2015-4733
• CVE-2015-2632
• CVE-2015-4000
• https://wiki.myasnchisdf.eu.org/SecurityTeam/KnowledgeBase/LogJam

Related notices

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