vulnerability

CentOS Linux: CVE-2017-17449: Important: kernel-alt security, bug fix, and enhancement update (Multiple Advisories)

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Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
Dec 7, 2017
Added
Aug 28, 2019
Modified
May 25, 2023

Description

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.

Solutions

centos-upgrade-kernelcentos-upgrade-kernel-rt

References

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