Vulnerability Details : 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.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-28831
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-28831
0.68%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-28831
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
MITRE | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-28831
-
The product does not handle or incorrectly handles an exceptional condition.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-28831
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/
[SECURITY] Fedora 34 Update: busybox-1.33.0-3.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/
[SECURITY] Fedora 33 Update: busybox-1.32.1-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd
busybox - BusyBox: The Swiss Army Knife of Embedded LinuxMailing List;Patch;Vendor Advisory
-
https://security.gentoo.org/glsa/202105-09
BusyBox: Denial of service (GLSA 202105-09) — Gentoo securityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/
[SECURITY] Fedora 32 Update: busybox-1.32.1-1.fc32 - package-announce - Fedora Mailing-ListsThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html
[SECURITY] [DLA 2614-1] busybox security updateMailing List;Third Party Advisory
Jump to