Buffer overflow in xen (Alpine package)



Published: 2019-12-31
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-12207
CWE-ID CWE-119
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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xen (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU22712

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-12207

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a local user to perform denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the mechanism responsible for error handling on some Intel platforms. A local user of a guest operating system can use a specially crafted application to trigger memory corruption and cause the host system to stop responding.

Successful exploitation of this vulnerability may result in a denial of service (DoS) attack.

Below is the list of processor families that are affected by this vulnerability:

Client:

  • Intel Core i3 Processors
  • Intel Core i5 Processors
  • Intel Core i7 Processors
  • Intel Core m Processor Family
  • 2nd generation Intel Core Processors
  • 3rd generation Intel Core Processors
  • 4th generation Intel Core Processors
  • 5th generation Intel Core Processors
  • 6th generation Intel Core Processors
  • 7th generation Intel Core Processors
  • 8th generation Intel Core Processors
  • Intel Core X-series Processor Family
  • Intel Pentium Gold Processor Series
  • Intel Celeron Processor G Series

Server:

  • 2nd Generation Intel Xeon Scalable Processors
  • Intel Xeon Scalable Processors
  • Intel Xeon Processor E7 v4 Family
  • Intel Xeon Processor E7 v3 Family
  • Intel Xeon Processor E7 v2 Family
  • Intel Xeon Processor E7 Family
  • Intel Xeon Processor E5 v4 Family
  • Intel Xeon Processor E5 v3 Family
  • Intel Xeon Processor E5 v2 Family
  • Intel Xeon Processor E5 Family
  • Intel Xeon Processor E3 v6 Family
  • Intel Xeon Processor E3 v5 Family
  • Intel Xeon Processor E3 v4 Family
  • Intel Xeon Processor E3 v3 Family
  • Intel Xeon Processor E3 v2 Family
  • Intel Xeon Processor E3 Family
  • Intel Xeon E Processor
  • Intel Xeon D Processor
  • Intel Xeon W Processor
  • Legacy Intel Xeon Processor

Mitigation

Install update from vendor's website.

Vulnerable software versions

xen (Alpine package): 4.1.3-r0 - 4.10.4-r0


CPE2.3 External links

http://git.alpinelinux.org/aports/commit/?id=b56efe8db5679b569767cee09b45ce5cd04b942d
http://git.alpinelinux.org/aports/commit/?id=7704a01fec21129dc2f13feb032fb39d8b6a9cb2
http://git.alpinelinux.org/aports/commit/?id=168f974f4f9941c940b1b4a27d1167175018ad92
http://git.alpinelinux.org/aports/commit/?id=1a7ae75cb9ed94f62f9859f8a07a0bc1c5021604
http://git.alpinelinux.org/aports/commit/?id=d9cf7666f5f3aa90dbce9f04bdc7d975284cc530

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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