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redhatcveRedhat.comRH:CVE-2021-47401
HistoryMay 22, 2024 - 8:57 a.m.

CVE-2021-47401

2024-05-2208:57:22
redhat.com
access.redhat.com
1
linux kernel
ipack
ipoctal
tty driver
information leak
security hole

6.2 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.0%

In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after registering the driver and must specifically not be allocated on the stack to avoid leaking information to user space (or triggering an oops). Drivers should not try to encode topology information in the tty device name but this one snuck in through staging without anyone noticing and another driver has since copied this malpractice. Fixing the ABI is a separate issue, but this at least plugs the security hole.

6.2 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.0%