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Date: Fri, 8 May 2020 18:38:08 +0800
From: qing xu <m1s5p6688@...il.com>
To: oss-security@...ts.openwall.com
Subject: Linux kernel: two buffer overflow in the marvell wifi driver
Hi,
There are two buffer overflows in marvell wifi chip driver in Linux kernel
which cause a denial of service(system crash) or possibly execute arbitrary
code.
Description
==========
[1]CVE-2020-12653：The mwifiex_cmd_append_vsie_tlv() in
drivers/net/wireless/marvell/mwifiex/scan.c calls memcpy() without checking
the destination size may trigger a buffer overflower, which a local user
could use to cause denial of service or the execution of arbitrary code.
[2]CVE-2020-12654：mwifiex_ret_wmm_get_status() in
drivers/net/wireless/marvell/mwifiex/wmm.c calls memcpy() without checking
the destination size.Since the source is given from remote AP which
contains illegal wmm elements , this may trigger a heap buffer overflow.
Patch
==========
https://patchwork.kernel.org/patch/11315255/
https://patchwork.kernel.org/patch/11315253/
Credit
==========
This issue was discovered by ADLab of Venustech
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