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Information Exposure Affecting perf package, versions <0:3.10.0-862.el7

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.08% (23rd percentile)

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  • Snyk IDSNYK-ORACLE7-PERF-2524418
  • published10 Apr 2022
  • disclosed7 Dec 2017
Report a new vulnerability Found a mistake?

Introduced: 7 Dec 2017

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

How to fix?

Upgrade Oracle:7 perf to version 0:3.10.0-862.el7 or higher.
This issue was patched in ELSA-2018-1062.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Oracle. See How to fix? for Oracle: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