Out-of-bounds Read Affecting busybox package, versions [,1.30.0)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.32% (71st percentile)

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  • Snyk IDSNYK-UNMANAGED-BUSYBOX-2318797
  • published14 Dec 2021
  • disclosed9 Jan 2019
  • creditUnknown

Introduced: 9 Jan 2019

CVE-2018-20679  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade busybox to version 1.30.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read. An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.

References

CVSS Scores

version 3.1