Bug 1940590 (CVE-2021-28660) - CVE-2021-28660 kernel: buffer overflow in rtw_wx_set_scan function in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
Summary: CVE-2021-28660 kernel: buffer overflow in rtw_wx_set_scan function in drivers...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-28660
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: 1940591
Blocks: 1940592
TreeView+ depends on / blocked
 
Reported: 2021-03-18 16:54 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-03-26 21:37 UTC (History)
45 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in the Linux kernel. The rtw_wx_set_scan driver allows writing beyond the end of the ->ssid[] array. The highest threat from this vulnerability is to data confidentiality and integrity as well system availability.
Clone Of:
Environment:
Last Closed: 2021-03-19 12:44:33 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2021-03-18 16:54:35 UTC 
rtw_wx_set_scan in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the Linux kernel through 5.11.6 allows writing beyond the end of the ->ssid[] array. NOTE: from the perspective of kernel.org releases, CVE IDs are not normally used for drivers/staging/* (unfinished work); however, system integrators may have situations in which a drivers/staging issue is relevant to their own customer base.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=74b6b20df8cfe90ada777d621b54c32e69e27cd7
Comment 1 Guilherme de Almeida Suckevicz 2021-03-18 16:57:50 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1940591]
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