Vulnerability Information
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Vulnerability Title
Junos OS: MX Series: In specific DHCPv6 scenarios jdhcpd memory increases continuously with subscriber logouts
Vulnerability Description
A Missing Release of Memory after Effective Lifetime vulnerability in the DHCP daemon (jdhcpd) of Juniper Networks Junos OS on MX Series, allows an adjacent, unauthenticated attacker to cause a memory leak, that will eventually cause a complete Denial-of-Service (DoS). In a DHCPv6 over PPPoE, or DHCPv6 over VLAN with Active lease query or Bulk lease query scenario, every subscriber logout will leak a small amount of memory. When all available memory has been exhausted, jdhcpd will crash and restart which causes a complete service impact until the process has recovered. The memory usage of jdhcpd can be monitored with: user@host> show system processes extensive | match jdhcpd This issue affects Junos OS: * all versions before 22.4R3-S1, * 23.2 versions before 23.2R2, * 23.4 versions before 23.4R2.
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Vulnerability Title
Juniper Networks Junos OS MX 安全漏洞
Vulnerability Description
Juniper Networks Junos OS MX是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS MX 22.4R3-S1之前版本、23.2R2之前版本和23.4R2之前版本存在安全漏洞，该漏洞源于jdhcpd存在内存释放问题，可能导致拒绝服务攻击。
CVSS Information
N/A
Vulnerability Type
N/A