CVE-2017-17449

The __netlink_deliver_tap_skb function in net/netlink/af_netlink.c in the Linux kernel through 4.14.4, when CONFIG_NLMON is enabled, does not restrict observations of Netlink messages to a single net namespace, which allows local users to obtain sensitive information by leveraging the CAP_NET_ADMIN capability to sniff an nlmon interface for all Netlink activity on the system.

• CVE ID
• CVE-2017-17449

• Assigner
• cve@mitre.org

• Vulnerability Status
• Modified

• Published Version
• 2017-12-07T00:29:00

• Last Modified Date
• 2018-05-31T01:29:00

• Version
• 2.0

• Vector String
• AV:L/AC:M/Au:N/C:P/I:N/A:N

• Access Vector
• LOCAL

• Access Compatibility
• MEDIUM

• Authentication
• NONE

• Confidentiality Impact
• PARTIAL

• Integrity Impact
• NONE

• Availability Impact
• NONE

• Base Score
• 1.9

• Severity
• LOW

• Exploitability Score
• 3.4

• Impact Score
• 2.9

• Version
• 3.0

• Vector String
• CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

• Attack Vector
• LOCAL

• Attack Compatibility
• HIGH

• Privileges Required
• LOW

• User Interaction
• NONE

• Scope
• UNCHANGED

• Confidentiality Impact
• HIGH

• Availability Impact
• NONE

• Base Score
• 4.7

• Base Severity
• MEDIUM

• Exploitability Score
• 1

• Impact Score
• 3.6