CVE-2018-1053— PostgreSQL 安全漏洞

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In postgresql 9.3.x before 9.3.21, 9.4.x before 9.4.16, 9.5.x before 9.5.11, 9.6.x before 9.6.7 and 10.x before 10.2, pg_upgrade creates file in current working directory containing the output of `pg_dumpall -g` under umask which was in effect when the user invoked pg_upgrade, and not under 0077 which is normally used for other temporary files. This can allow an authenticated attacker to read or modify the one file, which may contain encrypted or unencrypted database passwords. The attack is infeasible if a directory mode blocks the attacker searching the current working directory or if the prevailing umask blocks the attacker opening the file.

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不安全的临时文件

PostgreSQL 安全漏洞

PostgreSQL是PostgreSQL开发组所研发的一套自由的对象关系型数据库管理系统。该系统支持大部分SQL标准并且提供了许多其他特性，例如外键、触发器、视图等。 PostgreSQL中存在安全漏洞。攻击者可利用该漏洞读取或更改文件。以下版本受到影响：PostgreSQL 9.3.21之前的9.3.x版本，9.4.16之前的9.4.x版本，9.5.11之前的9.5.x版本，9.6.7之前的9.6.x版本， 10.2之前的10.x版本。

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