Improper Access Control Affecting kernel-rt-trace-devel package, versions <0:3.10.0-862.rt56.804.el7
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2099743
- published 26 Jul 2021
- disclosed 5 Dec 2017
Introduced: 5 Dec 2017
CVE-2017-17449 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-862.rt56.804.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/102122
- https://source.android.com/security/bulletin/pixel/2018-04-01
- https://access.redhat.com/security/cve/CVE-2017-17449
- https://www.debian.org/security/2017/dsa-4073
- https://www.debian.org/security/2018/dsa-4082
- https://lkml.org/lkml/2017/12/5/950
- https://access.redhat.com/errata/RHSA-2018:0676
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3653-1/
- https://usn.ubuntu.com/3653-2/
- https://usn.ubuntu.com/3655-1/
- https://usn.ubuntu.com/3655-2/
- https://usn.ubuntu.com/3657-1/