CVE-2009-3563
Scores
EPSS
Percentile: 79.6%
CVSS
CVSS Score: 5.0/10
All CVSS Scores
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Partial
Measures the impact to the availability of the impacted component
Description
ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
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Sources
Related Vulnerabilities
Vulnerable Software (6)
Type: Configuration
Product: ntp
Operating System: rhel 3
{ "fixed": "4.1.2-6.el3"}
Source: redhat
Type: Configuration
Product: ntp
Operating System: rhel 4
{ "fixed": "4.2.0.a.20040617-8.el4_8.1"}
Source: redhat
Type: Configuration
Product: ntp
Operating System: rhel 5
{ "fixed": "4.2.2p1-9.el5_4.1"}
Source: redhat
Type: Configuration
Product: ntp
Operating System: debian
{ "fixed": "1:4.2.4p8+dfsg-1"}
Source: debian
Type: Configuration
Product: ntp
Operating System: ubuntu hardy 8.04
{ "fixed": "1:4.2.4p4+dfsg-3ubuntu2.3"}
Source: ubuntu
Type: Configuration
Vendor: *
Product: ntp
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*", "versionEndIncluding": "4.2.2p4", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.7...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*", "versionEndIncluding": "4.2.2p4", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.72:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.73:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.90:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.91:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.92:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.93:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.94:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.95:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.96:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.97:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.98:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.0.99:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.1.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.1.2:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.2.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.2.2:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.2.2p1:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.2.2p2:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.2.2p3:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ntp:ntp:4.2.5:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd