SB2014100115 - Fedora 21 update for xen
Published: October 1, 2014 Updated: April 24, 2025
Security Bulletin ID
SB2014100115
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2014-7188)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.
Remediation
Install update from vendor's website.