SB2017041159 - SUSE Linux update for xen

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2017041159

SB2017041159 - SUSE Linux update for xen

Published: April 11, 2017

Security Bulletin ID SB2017041159
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Infinite loop (CVE-ID: CVE-2017-6505)

The vulnerability allows a local authenticated user to a crash the entire system.

The ohci_service_ed_list function in hw/usb/hcd-ohci.c in QEMU (aka Quick Emulator) before 2.9.0 allows local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors, a different vulnerability than CVE-2017-9330.


2) Out-of-bounds read (CVE-ID: CVE-2017-7228)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.


Remediation

Install update from vendor's website.

References