Citrix XenServer QEMU RTL8139 Guest Network Device Information Disclosure (CTX201717)

medium Nessus Plugin ID 85661
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Synopsis

The remote host is affected by an information disclosure vulnerability.

Description

The version of Citrix XenServer running on the remote host is affected by an information disclosure vulnerability due to improper validation of user-supplied input in the C+ mode offload emulation of the RTL8139 network card device model in QEMU. A remote attacker can exploit this to read process heap memory, resulting in the disclosure of sensitive information.

Solution

Apply the relevant hotfix referenced in the vendor advisory.

See Also

https://support.citrix.com/article/CTX201717

Plugin Details

Severity: Medium

ID: 85661

File Name: citrix_xenserver_CTX201717.nasl

Version: 1.8

Type: local

Family: Misc.

Published: 8/27/2015

Updated: 7/6/2018

Dependencies: citrix_xenserver_version.nbin

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:citrix:xenserver

Required KB Items: Host/XenServer/version, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 8/3/2015

Vulnerability Publication Date: 8/3/2015

Reference Information

CVE: CVE-2015-5165

BID: 76153