Use After Free Affecting torvalds/linux package, versions [,5.9.14)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.1% (29th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006677
  • published26 Jan 2022
  • disclosed9 Dec 2020
  • creditUnknown

Introduced: 9 Dec 2020

CVE-2020-29660  (opens in a new tab)
CWE-416  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.9.14 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free. A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.

References

CVSS Base Scores

version 3.1