A memory leak in the nl80211_get_ftm_responder_stats() function innet/wireless/nl80211.c allows attackers tocause a denial of service (memory consumption) by triggering nl80211hdr_put() failures Upstream commit: https://github.com/torvalds/linux/commit/1399c59fa92984836db90538cf92397fe7caaa57
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1775116]
Statement: This issue is rated as having Moderate impact because of the preconditions needed to trigger the resource cleanup code path.
Mitigation: In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module cfg80211. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 .
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:4062 https://access.redhat.com/errata/RHSA-2020:4062
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:4060 https://access.redhat.com/errata/RHSA-2020:4060
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2019-19055