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USN-3228-1: libevent vulnerabilities

13 March 2017

Several security issues were fixed in libevent.

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Releases

Packages

  • libevent - Asynchronous event notification library

Details

Guido Vranken discovered that libevent incorrectly handled memory when
processing certain data. A remote attacker could possibly use this issue
with an application that uses libevent to cause a denial of service, or
possibly execute arbitrary code.

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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 16.10
Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-3278-1: thunderbird-locale-cs, thunderbird, thunderbird-locale-de, thunderbird-locale-si, thunderbird-locale-et, thunderbird-locale-ko, thunderbird-locale-nl, thunderbird-locale-it, xul-ext-calendar-timezones, thunderbird-locale-ru, thunderbird-locale-sv, thunderbird-locale-hsb, thunderbird-locale-pt-pt, thunderbird-locale-hu, thunderbird-mozsymbols, thunderbird-locale-zh-cn, thunderbird-locale-es-ar, thunderbird-locale-nb-no, thunderbird-locale-sr, xul-ext-gdata-provider, thunderbird-locale-dsb, thunderbird-dev, thunderbird-locale-zh-hant, thunderbird-locale-pt-br, thunderbird-locale-af, thunderbird-locale-bg, thunderbird-locale-bn-bd, thunderbird-locale-is, thunderbird-locale-sq, thunderbird-locale-br, thunderbird-locale-da, thunderbird-locale-fy-nl, thunderbird-locale-zh-hans, thunderbird-locale-he, thunderbird-locale-zh-tw, thunderbird-locale-es, thunderbird-locale-gd, thunderbird-locale-hr, xul-ext-lightning, thunderbird-locale-en-us, thunderbird-locale-fi, thunderbird-locale-nb, thunderbird-locale-be, thunderbird-gnome-support, thunderbird-locale-pa, thunderbird-locale-sl, thunderbird-locale-lt, thunderbird-locale-pl, thunderbird-locale-ro, thunderbird-locale-sk, thunderbird-locale-sv-se, thunderbird-locale-ar, thunderbird-locale-ka, thunderbird-locale-pt, thunderbird-locale-pa-in, thunderbird-locale-nn, thunderbird-locale-ta-lk, thunderbird-locale-el, thunderbird-locale-ga-ie, thunderbird-locale-kab, thunderbird-locale-ta, thunderbird-locale-uk, thunderbird-locale-cy, thunderbird-locale-fr, thunderbird-locale-mk, thunderbird-locale-ast, thunderbird-globalmenu, thunderbird-locale-ca, thunderbird-locale-id, thunderbird-locale-eu, thunderbird-locale-ga, thunderbird-locale-tr, thunderbird-locale-en-gb, thunderbird-testsuite, thunderbird-locale-bn, thunderbird-locale-hy, thunderbird-locale-rm, thunderbird-locale-en, thunderbird-locale-ja, thunderbird-locale-fy, thunderbird-locale-es-es, thunderbird-locale-gl, thunderbird-locale-nn-no, thunderbird-locale-vi