Bug 1775074 (CVE-2019-19055) - CVE-2019-19055 kernel: memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c allows DoS
Summary: CVE-2019-19055 kernel: memory leak in the nl80211_get_ftm_responder_stats() f...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-19055
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1775116 1776606 1829289 1829290 1829291 1829292
Blocks: 1775107
TreeView+ depends on / blocked
 
Reported: 2019-11-21 12:06 UTC by msiddiqu
Modified: 2023-12-15 16:58 UTC (History)
45 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2020-09-29 21:59:04 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:4416 0 None None None 2020-10-29 15:09:40 UTC
Red Hat Product Errata RHBA-2020:4417 0 None None None 2020-10-29 15:08:08 UTC
Red Hat Product Errata RHBA-2020:4418 0 None None None 2020-10-29 15:13:34 UTC
Red Hat Product Errata RHBA-2020:4419 0 None None None 2020-10-29 15:11:38 UTC
Red Hat Product Errata RHBA-2020:4420 0 None None None 2020-10-29 15:51:05 UTC
Red Hat Product Errata RHSA-2020:4060 0 None None None 2020-09-29 20:52:13 UTC
Red Hat Product Errata RHSA-2020:4062 0 None None None 2020-09-29 18:58:30 UTC

Description msiddiqu 2019-11-21 12:06:05 UTC 
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
Comment 1 msiddiqu 2019-11-21 12:19:53 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1775116]
Comment 3 Petr Matousek 2020-04-29 10:53:36 UTC 
Statement:

This issue is rated as having Moderate impact because of the preconditions needed to trigger the resource cleanup code path.
Comment 4 Petr Matousek 2020-04-29 10:53:41 UTC 
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 .
Comment 6 errata-xmlrpc 2020-09-29 18:58:27 UTC 
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
Comment 7 errata-xmlrpc 2020-09-29 20:52:09 UTC 
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
Comment 8 Product Security DevOps Team 2020-09-29 21:59:04 UTC 
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
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