漏洞类别：Amazon Linux
漏洞等级： 
漏洞信息
Package updates are available for Amazon Linux that fix the following vulnerabilities: CVE-2016-2518: 1331468: CVE-2016-2518 ntp: out-of-bounds references on crafted packet An out-of-bounds access flaw was found in the way ntpd processed certain packets. An authenticated attacker could use a crafted packet to create a peer association with hmode of 7 and larger, which could potentially (although highly unlikely) cause ntpd to crash. CVE-2016-2517: no details available CVE-2016-2516: 1331466: CVE-2016-2516 ntp: assertion failure in ntpd on duplicate IPs on unconfig directives CVE-2016-1550: A flaw was found in the way NTP's libntp performed message authentication. An attacker able to observe the timing of the comparison function used in packet authentication could potentially use this flaw to recover the message digest. 1331464: CVE-2016-1550 ntp: libntp message digest disclosure CVE-2016-1549: no details available CVE-2016-1548: It was found that an ntpd client could be forced to change from basic client/server mode to the interleaved symmetric mode. A remote attacker could use a spoofed packet that, when processed by an ntpd client, would cause that client to reject all future legitimate server responses, effectively disabling time synchronization on that client. 1331462: CVE-2016-1548 ntp: ntpd switching to interleaved mode with spoofed packets.
漏洞危害
Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.
解决方案
Administrators are advised to apply the appropriate software updates.
Patch:
Following are links for downloading patches to fix the vulnerabilities:
0day
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