Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock could occur in case of netpoll being active for the interface the xen-netback driver is connected to (CVE-2022-42329).
CVSS Information
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Vulnerability Type
N/A
Vulnerability Title
Xen 安全漏洞
Vulnerability Description
Xen是英国剑桥（Cambridge）大学的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen xen-netback存在安全漏洞，该漏洞源于当出于其他原因丢弃包时，如果驱动程序连接到的接口的netpoll处于活动状态，则可能会发生死锁，恶意攻击者可能会通过半虚拟化网络接口导致主机拒绝服务(DoS)。
CVSS Information
N/A
Vulnerability Type
N/A