Improper input validation in Xen
CVE-2014-8594
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.022 (80.9th percentile) — read the EPSS interpretation.
Affected products
- Xen — versions 4.0.0, 4.0.1, 4.0.2
- Debian Debian_linux — versions 7.0
- Opensuse — versions 13.1, 13.2
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (Permissions Required, x_refsource_SECUNIA, third-party-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- cve@mitre.org (vdb-entry, x_refsource_XF)