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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade golang-github-ulikunitz-xz | Jul 30, 2024 | Apr 28, 2021 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Apr 28, 2021 |
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