CVE-2021-28831

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd

https://lists.fedoraproject.org/archives/list/[email protected]/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/

https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/

https://lists.fedoraproject.org/archives/list/[email protected]/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/

https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html

https://security.gentoo.org/glsa/202105-09

Details

Source: MITRE

Published: 2021-03-19

Updated: 2021-05-26

Type: CWE-755

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Tenable Plugins

View all (11 total)

IDNameProductFamilySeverity
155939Ubuntu 18.04 LTS / 20.04 LTS / 21.04 / 21.10 : BusyBox vulnerabilities (USN-5179-1)NessusUbuntu Local Security Checks
high
154766openSUSE 15 Security Update : busybox (openSUSE-SU-2021:1408-1)NessusSuSE Local Security Checks
critical
154661openSUSE 15 Security Update : busybox (openSUSE-SU-2021:3531-1)NessusSuSE Local Security Checks
critical
154647SUSE SLED15 / SLES15 Security Update : busybox (SUSE-SU-2021:3531-1)NessusSuSE Local Security Checks
critical
153733EulerOS 2.0 SP9 : busybox (EulerOS-SA-2021-2546)NessusHuawei Local Security Checks
high
153677EulerOS 2.0 SP9 : busybox (EulerOS-SA-2021-2522)NessusHuawei Local Security Checks
high
150013GLSA-202105-09 : BusyBox: Denial of serviceNessusGentoo Local Security Checks
high
149431Amazon Linux AMI : busybox (ALAS-2021-1496)NessusAmazon Linux Local Security Checks
high
148788Fedora 32 : 1:busybox (2021-2024803354)NessusFedora Local Security Checks
high
148302Debian DLA-2614-1 : busybox security updateNessusDebian Local Security Checks
high
148253Fedora 33 : 1:busybox (2021-d20c8a4730)NessusFedora Local Security Checks
high