CVE-2019-3883— Red Hat 389 Directory Server 缓冲区错误漏洞

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In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.

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对已超过有效生命周期的资源丧失索引

Red Hat 389 Directory Server 缓冲区错误漏洞

Red Hat 389 Directory Server（前称Fedora Directory Server）是美国红帽（Red Hat）公司的一款企业级的Linux目录服务器。该服务器完全支持LDAPv3规范，具有可扩展、多主复制等特点。 Red Hat 389 Directory Server中存在缓冲区错误漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

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