CVE-2021-29482

denial of service in github.com/ulikunitz/xz

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.43%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: ulikunitz xz
Published at:
Updated at:

References

Link Tags
https://github.com/ulikunitz/xz/security/advisories/GHSA-25xm-hr59-7c27 third party advisory
https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923acf82cb378f55ab2652b9b third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-29482?
CVE-2021-29482 has been scored as a high severity vulnerability.
How to fix CVE-2021-29482?
To fix CVE-2021-29482, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29482 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29482 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29482?
CVE-2021-29482 affects ulikunitz xz.
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