CVE-2021-28831

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CVSS 3.1

7.5 high

EPSS

3%p85

Published

Mar 19, 2021 (Mar 19, 2021)

Modified

Jun 17, 2026

Description

decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

Vendors: busybox fedoraproject debian
Products: busybox, fedora, debian linux
Weakness: CWE-755
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (2.7%)

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