vulnerability
Arch Linux: Denial of service (CVE-2021-28831)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Mar 19, 2021 | Jul 11, 2025 | Nov 27, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Mar 19, 2021
Added
Jul 11, 2025
Modified
Nov 27, 2025
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.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-28831
- https://attackerkb.com/topics/CVE-2021-28831
- URL-https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd
- URL-https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/
- URL-https://security.archlinux.org/ASA-202103-11
- URL-https://security.archlinux.org/ASA-202103-12
- URL-https://security.gentoo.org/glsa/202105-09
- CWE-755
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