Bug 1774976 (CVE-2019-19066) - CVE-2019-19066 kernel: A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c allows for a DoS
Summary: CVE-2019-19066 kernel: A memory leak in the bfad_im_get_stats() function in d...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-19066
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1774978 1829907 1829908 1829911 1829912 1829913
Blocks: 1774980
TreeView+ depends on / blocked
 
Reported: 2019-11-21 11:01 UTC by Marian Rehak
Modified: 2021-10-25 22:13 UTC (History)
43 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in the Linux kernel. The bfad_im_get_stats function mishandles resource cleanup on error. A local attacker, able to induce the error conditions, could use this flaw to crash the system. The highest threat from this vulnerability is to system availability.
Clone Of:
Environment:
Last Closed: 2021-10-25 22:13:15 UTC
Embargoed:

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Description Marian Rehak 2019-11-21 11:01:02 UTC 
A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering bfa_port_get_stats() failures.

Upstream Issue:

https://github.com/torvalds/linux/commit/0e62395da2bd5166d7c9e14cbc7503b256a34cb0
Comment 1 Marian Rehak 2019-11-21 11:01:36 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1774978]
Comment 3 Petr Matousek 2020-04-30 14:42:23 UTC 
Statement:

This issue is rated as having Low impact because of the preconditions needed to trigger the error/resource cleanup code path.
Comment 4 Petr Matousek 2020-04-30 14:42:27 UTC 
Mitigation:

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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