CVE-2021-28831

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 77%
Affected Products (NVD)
VendorProductVersion
busyboxbusybox
1.32.0 ≤
𝑥
≤ 1.32.1
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
busybox
bookworm
1:1.35.0-4
fixed
bullseye
no-dsa
buster
no-dsa
sid
1:1.37.0-4
fixed
trixie
1:1.37.0-4
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
busybox
bionic
Fixed 1:1.27.2-2ubuntu3.4
released
focal
Fixed 1:1.30.1-4ubuntu6.4
released
groovy
ignored
hirsute
Fixed 1:1.30.1-6ubuntu2.1
released
impish
Fixed 1:1.30.1-6ubuntu3.1
released
jammy
Fixed 1:1.30.1-7ubuntu2
released
kinetic
Fixed 1:1.30.1-7ubuntu2
released
lunar
Fixed 1:1.30.1-7ubuntu2
released
trusty
Fixed 1:1.21.0-1ubuntu1.4+esm1
released
xenial
Fixed 1:1.22.0-15ubuntu1.4+esm1
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
busybox
suse enterprise desktop 15 SP2
1.26.2-4.5.1
fixed
suse enterprise desktop 15 SP3
1.34.1-4.9.1
fixed
suse enterprise desktop 15 SP4
1.35.0-150400.3.3.1
fixed
suse enterprise desktop 15 SP5
1.35.0-150500.8.2
fixed
suse enterprise desktop 15 SP6
1.35.0-150500.10.3.3
fixed
suse enterprise desktop 15 SP7
1.35.0-150700.16.4
fixed
suse enterprise sap 15 SP1
1.34.1-4.9.1
fixed
suse enterprise sap 15 SP2
1.34.1-4.9.1
fixed
suse enterprise sap 15 SP3
1.34.1-4.9.1
fixed
suse enterprise sap 15 SP4
1.35.0-150400.3.3.1
fixed
suse enterprise sap 15 SP5
1.35.0-150500.8.2
fixed
suse enterprise sap 15 SP6
1.35.0-150500.10.3.3
fixed
suse enterprise sap 15 SP7
1.35.0-150700.16.4
fixed
suse enterprise server 15 SP1
1.34.1-4.9.1
fixed
suse enterprise server 15 SP2
1.34.1-4.9.1
fixed
suse enterprise server 15 SP3
1.34.1-4.9.1
fixed
suse enterprise server 15 SP4
1.35.0-150400.3.3.1
fixed
suse enterprise server 15 SP5
1.35.0-150500.8.2
fixed
suse enterprise server 15 SP6
1.35.0-150500.10.3.3
fixed
suse enterprise server 15 SP7
1.35.0-150700.16.4
fixed
busybox-static
suse enterprise desktop 15 SP2
1.26.2-4.5.1
fixed
suse enterprise desktop 15 SP3
1.34.1-4.9.1
fixed
suse enterprise desktop 15 SP4
1.35.0-150400.3.3.1
fixed
suse enterprise desktop 15 SP5
1.35.0-150500.8.2
fixed
suse enterprise desktop 15 SP6
1.35.0-150500.10.3.3
fixed
suse enterprise desktop 15 SP7
1.35.0-150700.16.4
fixed
suse enterprise sap 15 SP1
1.34.1-4.9.1
fixed
suse enterprise sap 15 SP2
1.34.1-4.9.1
fixed
suse enterprise sap 15 SP3
1.34.1-4.9.1
fixed
suse enterprise sap 15 SP4
1.35.0-150400.3.3.1
fixed
suse enterprise sap 15 SP5
1.35.0-150500.8.2
fixed
suse enterprise sap 15 SP6
1.35.0-150500.10.3.3
fixed
suse enterprise sap 15 SP7
1.35.0-150700.16.4
fixed
suse enterprise server 15 SP1
1.34.1-4.9.1
fixed
suse enterprise server 15 SP2
1.34.1-4.9.1
fixed
suse enterprise server 15 SP3
1.34.1-4.9.1
fixed
suse enterprise server 15 SP4
1.35.0-150400.3.3.1
fixed
suse enterprise server 15 SP5
1.35.0-150500.8.2
fixed
suse enterprise server 15 SP6
1.35.0-150500.10.3.3
fixed
suse enterprise server 15 SP7
1.35.0-150700.16.4
fixed
Common Weakness Enumeration
References
https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd
https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/
https://security.gentoo.org/glsa/202105-09
https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd
https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00012.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/
https://security.gentoo.org/glsa/202105-09
https://security.netapp.com/advisory/ntap-20250509-0005/