denial of service in github.com/ulikunitz/xz
CVE-2021-29482

7.5HIGH

Key Information:

Vendor

Ulikunitz

Status
Xz
Vendor
CVE Published:
28 April 2021

What is CVE-2021-29482?

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.

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Deploy the Patch

Affected Version(s)

xz < 0.5.8

References

https://github.com/ulikunitz/xz/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/ulikunitz/xz/commit/69c6093c7b2397b923...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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