Ubuntu.comUB:CVE-2017-15908CVE-2017-15908
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.955 High
EPSS
Percentile
99.4%
In systemd 223 through 235, a remote DNS server can respond with a custom
crafted DNS NSEC resource record to trigger an infinite loop in the
dns_packet_read_type_window() function of the ‘systemd-resolved’ service
and cause a DoS of the affected service.
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | resolve only used by default on zesty+ independently discovered by Nelson William Gamazo Sanchez, working with Trend Micro’s Zero Day Initiative |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.955 High
EPSS
Percentile
99.4%