CVE-2021-28831
low
CVSS v3
—
CVSS v2
—
VIR risk
2.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-28831.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-28831
Vendor advisory: arch — https://security.archlinux.org/ASA-202103-11
Vendor advisory: arch — https://security.archlinux.org/ASA-202103-12
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1:1.35.0-1 |
| debian | bullseye | fixed | 1:1.30.1-6+deb11u1 |
| debian | forky | fixed | 1:1.35.0-1 |
| debian | sid | fixed | 1:1.35.0-1 |
| debian | trixie | fixed | 1:1.35.0-1 |
| arch | fixed | 1.32.1-4 | |
| sles | affected | |
References
Verify integrity in audit chain (admin only). AS-IS.