SB2014112402 - Multiple vulnerabilities in Xen 

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Main Vulnerability Database SB2014112402

SB2014112402 - Multiple vulnerabilities in Xen

Published: November 24, 2014 Updated: August 9, 2020

Security Bulletin ID SB2014112402
Severity
Medium
Patch available
NO
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2015-0361)

The vulnerability allows remote domains to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (system crash) via a crafted hypercall during HVM guest teardown.


2) Input validation error (CVE-ID: CVE-2014-9030)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References