CVE-2021-29482
Infinite loop in github.com/ulikunitz/xz
7.5
HIGH
CVSS 3.1
EPSS 0.43%
Description
xz is a compression and decompression library focusing on the xz format completely written in Go. The function readUvarint used to read the xz container format may not terminate a loop provide malicous input. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated.
How to fix CVE-2021-29482
To remediate CVE-2021-29482, upgrade the affected package to a fixed version below.
- —upgrade to 0.5.6-2 or later
- —upgrade to 0.5.8 or later
- —upgrade to 0.5.8 or later
Is CVE-2021-29482 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.5.6-2
- from 0, < 0.5.8
- from 0, < 0.5.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |