SB2014111903 - Multiple vulnerabilities in Debian Linux 

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Main Vulnerability Database SB2014111903

SB2014111903 - Multiple vulnerabilities in Debian Linux

Published: November 19, 2014 Updated: August 9, 2020

Security Bulletin ID SB2014111903
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2014-8866)

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

The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.


2) Input validation error (CVE-ID: CVE-2014-8595)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.


Remediation

Install update from vendor's website.

References