NULL Pointer Dereference Affecting freebsd package, versions [,7.1)


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-FREEBSD-2383020
  • published26 Jan 2022
  • disclosed3 Sept 2020
  • creditUnknown

Introduced: 3 Sep 2020

CVE-2020-24385  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade freebsd to version 7.1 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. In MidnightBSD before 1.2.6 and 1.3 before August 2020, and FreeBSD before 7, a NULL pointer dereference was found in the Linux emulation layer that allows attackers to crash the running kernel. During binary interaction, td->td_emuldata in sys/compat/linux/linux_emul.h is not getting initialized and returns NULL from em_find().

References

CVSS Scores

version 3.1