F5F5:K17525K17525 : NTP vulnerability CVE-2015-7853
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.073 Low
EPSS
Percentile
93.4%
Security Advisory Description
The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value. (CVE-2015-7853)
Impact
Running a custom refclock driver in ntpdcould overflow a data buffer under certain conditions. Running a custom installed refclock driver is not a supported configuration in F5 products.
| CPE | Name | Operator | Version |
|---|---|---|---|
| big-ip afm | eq | 11.3.0 | |
| big-ip afm | eq | 11.4.0 | |
| big-ip afm | eq | 11.4.1 | |
| big-ip afm | eq | 11.5.0 | |
| big-ip afm | eq | 11.5.1 | |
| big-ip afm | eq | 11.5.2 | |
| big-ip afm | eq | 11.5.3 | |
| big-ip afm | eq | 11.6.0 | |
| big-ip afm | eq | 11.6.1 | |
| big-ip afm | eq | 12.0.0 |
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.073 Low
EPSS
Percentile
93.4%