CVE-2026-23555

弱点类型

Any guest issuing a Xenstore command accessing a node using the (illegal) node path "/local/domain/", will crash xenstored due to a clobbered error indicator in xenstored when verifying the node path. Note that the crash is forced via a failing assert() statement in xenstored. In case xenstored is being built with NDEBUG #defined, an unprivileged guest trying to access the node path "/local/domain/" will result in it no longer being serviced by xenstored, other guests (including dom0) will still be serviced, but xenstored will use up all cpu time it can get.

受影响产品

• xen xen

参考链接

• https://xenbits.xenproject.org/xsa/advisory-481.html
• http://www.openwall.com/lists/oss-security/2026/03/17/7
• http://xenbits.xen.org/xsa/advisory-481.html