Information Exposure Affecting torvalds/linux package, versions [,4.14.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.08% (26th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005238
  • published26 Jan 2022
  • disclosed7 Dec 2017
  • creditUnknown

Introduced: 7 Dec 2017

CVE-2017-17449  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.14.5 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. 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.

CVSS Base Scores

version 3.1