Bug 1759052 (CVE-2019-15925) - CVE-2019-15925 kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg
Summary: CVE-2019-15925 kernel: out-of-bounds access in function hclge_tm_schd_mode_vn...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-15925
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: 1759053 Engineering1809057 Engineering1809058 Engineering1809059
Blocks: Embargoed1759055
TreeView+ depends on / blocked
 
Reported: 2019-10-07 10:12 UTC by Dhananjay Arunesh
Modified: 2021-02-16 21:18 UTC (History)
43 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds access flaw was found in the hclge_shaper_para_calc driver in the Linux kernel. Access to an array with an index higher than its maximum index will lead to an out-of-bounds access vulnerability. This could affect both data confidentiality and integrity as well as system availability.
Clone Of:
Environment:
Last Closed: 2020-11-04 02:21:43 UTC

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4431 0 None None None 2020-11-04 00:49:22 UTC
Red Hat Product Errata RHSA-2020:4609 0 None None None 2020-11-04 02:21:04 UTC

Description Dhananjay Arunesh 2019-10-07 10:12:19 UTC 
An issue was discovered in the Linux kernel. An out of bounds access exists in the function hclge_tm_schd_mode_vnet_base_cfg in the file drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c.

Reference:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04f25edb48c441fc278ecc154c270f16966cbb90
Comment 1 Dhananjay Arunesh 2019-10-07 10:12:51 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1759053]
Comment 2 Justin M. Forbes 2019-10-07 14:21:22 UTC 
This was fixed for Fedora with the 5.2.3 stable updates.
Comment 6 Eric Christensen 2020-03-12 15:59:08 UTC 
Mitigation:

Blacklisting the affected HCLGE driver module until a patch is available can be done using the blacklist mechanism. This will ensure the driver is not loaded at boot time.  For instructions on how to black list a kernel module, please read: https://access.redhat.com/solutions/41278.
Comment 7 errata-xmlrpc 2020-11-04 00:49:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4431 https://access.redhat.com/errata/RHSA-2020:4431
Comment 8 errata-xmlrpc 2020-11-04 02:21:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4609 https://access.redhat.com/errata/RHSA-2020:4609
Comment 9 Product Security DevOps Team 2020-11-04 02:21:43 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-2019-15925
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