Detections
Analytics
dnsmasq < 2.50 Multiple Remote TFTP Vulnerabilities
critical Nessus Plugin ID 40875
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Synopsis
The remote TFTP service is affected by multiple vulnerabilities.Description
The remote host is running dnsmasq, a DNS and TFTP server.The version of dnsmasq installed on the remote host reports itself as lower than 2.50. Such versions include a TFTP server that is reportedly affected by a number of issues:
- A remote heap-overflow vulnerability exists because the software fails to properly bounds-check user-supplied input before copying it into an insufficiently-sized memory buffer. (CVE-2009-2957)
- A malformed TFTP packet can crash dnsmasq with a NULL pointer dereference. (CVE-2009-2958)
Solution
Upgrade to dnsmasq 2.50 or later.See Also
http://www.coresecurity.com/content/dnsmasq-vulnerabilities
https://seclists.org/fulldisclosure/2009/Aug/450
Plugin Details
Severity: Critical
ID: 40875
File Name: dnsmasq_multiple_tftp_flaws.nasl
Version: 1.14
Type: remote
Family: DNS
Published: 9/4/2009
Updated: 11/15/2018
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/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:/a:thekelleys:dnsmasq
Required KB Items: Settings/ParanoidReport, dns_server/version
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/31/2009
Vulnerability Publication Date: 8/31/2009
Reference Information
CVE: CVE-2009-2957, CVE-2009-2958