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RHSA-2016:0610-1: Critical: flash-plugin security update

2016-04-08 KENNETH 0

RHSA-2016:0610-1: Critical: flash-plugin security update Red Hat Enterprise Linux: An update for flash-plugin is now available for Red Hat Enterprise Linux 5 Supplementary and Red Hat Enterprise Linux 6 Supplementary. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. CVE-2016-1006, CVE-2016-1011, CVE-2016-1012, CVE-2016-1013, CVE-2016-1014, CVE-2016-1015, CVE-2016-1016, CVE-2016-1017, CVE-2016-1018, CVE-2016-1019, CVE-2016-1020, CVE-2016-1021, CVE-2016-1022, CVE-2016-1023, CVE-2016-1024, CVE-2016-1025, CVE-2016-1026, CVE-2016-1027, CVE-2016-1028, CVE-2016-1029, CVE-2016-1030, CVE-2016-1031, CVE-2016-1032, CVE-2016-1033 Source: RHSA-2016:0610-1: Critical: flash-plugin security update

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USN-2917-2: Firefox regressions

2016-04-08 KENNETH 0

USN-2917-2: Firefox regressions Ubuntu Security Notice USN-2917-2 7th April, 2016 firefox regressions A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary USN-2917-1 introduced several regressions in Firefox. Software description firefox – Mozilla Open Source web browser Details USN-2917-1 fixed vulnerabilities in Firefox. This update caused severalregressions that could result in search engine settings being lost, thelist of search providers appearing empty or the location bar breakingafter typing an invalid URL. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NSS. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of [ more… ]

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Contributor Weekend: Global WordPress Translation Day

2016-04-08 KENNETH 0

Contributor Weekend: Global WordPress Translation Day Global WordPress Translation Day is a one-day contributor initiative organised by the WordPress project’s Polyglots team that is dedicated to helping new contributors who would like to translate WordPress in one of the 160 languages WordPress is available in. Global WordPress Translation Day will be on Sunday, April 24th, starting at 0:00 UTC and will go on for 24 hours covering all time zones. What are we doing? Live training: A 24h live streaming of tutorials about translating WordPress in different languages and making your code translatable (30min/1h sessions in different languages including a general instruction and specifics for that particular language). The internationalization sessions will be in English. The sessions will be presented by some of the most experienced WordPress translators and internationalization experts. The Schedule can be found on the website. Local translation contributor days: Groups of [ more… ]

MySQL InnoDB의 Adaptive Hash Index 활용

2016-04-08 KENNETH 0

MySQL InnoDB의 Adaptive Hash Index 활용 개요 MySQL의 InnoDB에는 Adaptive Hash Index 기능이 있는데, 어떤 상황에서 효과가 있고 사용 시 반드시 주의를 해야할 점에 대해서 정리하도록 하겠습니다. InnoDB B-Tree 인덱스 MySQL의 InnoDB의 대표적인 인덱스는 B-Tree입니다. 데이터는 Primary Key 순으로 정렬되어 관리되고, Secondrary Key는 인덱스키+PK를 조합으로 정렬이 되어 있습니다. 즉, 특정 데이터를 찾기 위해서는 Secondrary Key에서 PK를 찾고, 그 PK를 통해 다시 원하는 데이터로 찾아가는 형태로 데이터가 처리 됩니다. 트리의 가장 큰 강점은 데이터 접근 퍼포먼스가 데이터 증가량에 따라서도 결코 선형적으로 증가하지 않다는 점에 있습니다. 참고로, PK 접근 시 데이터 접근에 소요되는 비용은 O(logN)이고,두번 트리에 접근하는 Secondrary Key에 소요되는 비용은 2 * O(logN)입니다. 데이터가 아무리 많아져도, 데이터 접근에 소요되는 비용이 크게 증가되지 않음에도, 상황에 따라 효율이 좋지 않습니다. 자주 사용되는 데이터 탐색에도 매번 트리의 경로를 쫓아가야 한다는 것이죠. 게다가 Mutex Lock이 과도하게 잡히게 되면, 적은 데이터 셋에도 불구하고 DB 자원 사용 [ more… ]