Vulnerability Information
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Vulnerability Title
SACK can cause extensive memory use via fragmented resend queue
Vulnerability Description
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e.
CVSS Information
N/A
Vulnerability Type
不加限制或调节的资源分配
Vulnerability Title
Linux kernel资源管理错误漏洞
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel中网络子系统处理TCP Selective Acknowledgment片段的方法存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。攻击者可利用该漏洞造成拒绝服务（消耗大量资源）。
CVSS Information
N/A
Vulnerability Type
N/A