CVE-2021-28831
Published: 19 March 2021
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
busybox Launchpad, Ubuntu, Debian |
bionic |
Released
(1:1.27.2-2ubuntu3.4)
|
| focal |
Released
(1:1.30.1-4ubuntu6.4)
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Released
(1:1.30.1-6ubuntu2.1)
|
|
| impish |
Released
(1:1.30.1-6ubuntu3.1)
|
|
| jammy |
Released
(1:1.30.1-7ubuntu2)
|
|
| kinetic |
Released
(1:1.30.1-7ubuntu2)
|
|
| lunar |
Released
(1:1.30.1-7ubuntu2)
|
|
| trusty |
Needed
|
|
| upstream |
Released
(1.33.1, 1.34.0)
|
|
| xenial |
Released
(1:1.22.0-15ubuntu1.4+esm1)
|
|
|
Patches: upstream: https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |