Bug 1992798 (CVE-2021-38207) - CVE-2021-38207 kernel: buffer overflow in drivers/net/ethernet/xilinx/ll_temac_main.c by sending heavy network traffic for about ten minutes
Summary: CVE-2021-38207 kernel: buffer overflow in drivers/net/ethernet/xilinx/ll_tema...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2021-38207
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: 1992799
Blocks: 1992800
TreeView+ depends on / blocked
 
Reported: 2021-08-11 18:29 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-08-12 13:32 UTC (History)
44 users (show)

Fixed In Version: kernel 5.13
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel. A buffer overflow and lockup, leading to a denial of service, can occur when a remote attacker sends heavy network traffic for approximately ten minutes. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Clone Of:
Environment:
Last Closed: 2021-08-12 13:28:11 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2021-08-11 18:29:59 UTC 
drivers/net/ethernet/xilinx/ll_temac_main.c in the Linux kerne allows local attackers to cause a denial of service (buffer overflow and lockup) by sending heavy network traffic for about ten minutes.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c364df2489b8ef2f5e3159b1dff1ff1fdb16040d
Comment 1 Guilherme de Almeida Suckevicz 2021-08-11 18:30:43 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1992799]
Comment 3 Product Security DevOps Team 2021-08-12 13:28:11 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-2021-38207
Comment 4 Justin M. Forbes 2021-08-12 13:32:08 UTC 
This was fixed for Fedora with the 5.12.13 stable kernel updates.
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