CVE-2021-42374

busybox: out-of-bounds read in unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed

Published Nov 15, 2021 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4019-1 busybox security update
EUVD EUVD EUVD-2021-29345 An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that
Ubuntu USN Ubuntu USN USN-5179-1 BusyBox vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}