Detections
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Cisco Nexus 3000 / 9000 Series GNU C Library (glibc) getaddrinfo() RCE (cisco-sa-20160218-glibc)
high Nessus Plugin ID 93480
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
The version of Cisco NX-OS software running on the remote device is affected by a remote code execution vulnerability in the bundled version of the GNU C Library (glibc) due to a stack-based buffer overflow condition in the DNS resolver. An unauthenticated, remote attacker can exploit this, via a crafted DNS response that triggers a call to the getaddrinfo() function, to cause a denial of service condition or the execution of arbitrary code.Solution
Upgrade to the relevant fixed version or install the relevant SMU patches referenced in Cisco bug ID CSCuy36553 / CSCuy38921.See Also
http://www.nessus.org/u?ae76a668
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuy36553
Plugin Details
Severity: High
ID: 93480
File Name: cisco-CSCuy36553-nxos.nasl
Version: 1.12
Type: combined
Family: CISCO
Published: 9/14/2016
Updated: 11/14/2019
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.0
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2015-7547
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.3
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:nx-os
Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Device, Host/Cisco/NX-OS/Model
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/15/2016
Vulnerability Publication Date: 2/16/2016
Reference Information
CVE: CVE-2015-7547
BID: 83265