Bug 1997961 (CVE-2021-3743) - CVE-2021-3743 kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c
Summary: CVE-2021-3743 kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-3743
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: 1997962 1998289 2000393 2000394
Blocks: 1996549 2002255
TreeView+ depends on / blocked
 
Reported: 2021-08-26 07:34 UTC by Dhananjay Arunesh
Modified: 2023-05-12 21:19 UTC (History)
41 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds (OOB) memory read flaw was found in the Qualcomm IPC router protocol in the Linux kernel. A missing sanity check allows a local attacker to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
Clone Of:
Environment:
Last Closed: 2022-05-11 09:46:24 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2022:2229 0 None None None 2022-05-12 11:26:28 UTC
Red Hat Product Errata RHBA-2022:4630 0 None None None 2022-05-18 11:46:13 UTC
Red Hat Product Errata RHBA-2022:4693 0 None None None 2022-05-19 05:10:40 UTC
Red Hat Product Errata RHBA-2022:4969 0 None None None 2022-06-08 18:39:42 UTC
Red Hat Product Errata RHBA-2022:5088 0 None None None 2022-06-16 11:23:00 UTC
Red Hat Product Errata RHSA-2022:1975 0 None None None 2022-05-10 14:39:24 UTC
Red Hat Product Errata RHSA-2022:1988 0 None None None 2022-05-10 14:45:09 UTC

Description Dhananjay Arunesh 2021-08-26 07:34:29 UTC 
An out-of-bounds (OOB) memory read flaw was found in the Qualcomm IPC router protocol qrtr_endpoint_post in the Linux kernel. A missing sanity check may allow a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information.

References:
https://lists.openwall.net/netdev/2021/08/17/124
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e78c597c3eb
Comment 1 Dhananjay Arunesh 2021-08-26 07:35:05 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1997962]
Comment 13 Justin M. Forbes 2021-09-08 15:09:18 UTC 
This is fixed for Fedora with the 5.13.14 stable kernel updates.
Comment 15 errata-xmlrpc 2022-05-10 14:39:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1975 https://access.redhat.com/errata/RHSA-2022:1975
Comment 16 errata-xmlrpc 2022-05-10 14:45:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1988 https://access.redhat.com/errata/RHSA-2022:1988
Comment 17 Product Security DevOps Team 2022-05-11 09:46:21 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-2021-3743
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