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Out-of-bounds Read Affecting busybox package, versions <1.29.3-r10

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.57% (78th percentile)

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  • Snyk ID SNYK-ALPINE310-BUSYBOX-454495
  • published 9 Jan 2019
  • disclosed 9 Jan 2019
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Introduced: 9 Jan 2019

CVE-2018-20679 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade Alpine:3.10 busybox to version 1.29.3-r10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Alpine. See How to fix? for Alpine:3.10 relevant fixed versions and status.

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.