What’s Vulnerable › Vulnerabilities

CVE-2020-22916

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-22 · updated 2026-06-17

Description

An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of "endless output" and "denial of service" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.

Affected products

• tukaani-project xz: 5.2.5

References

• http://web.archive.org/web/20230918084612/https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability
• https://bugzilla.redhat.com/show_bug.cgi?id=2234987
• https://bugzilla.suse.com/show_bug.cgi?id=1214590
• https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability
• https://github.com/tukaani-project/xz/issues/61
• https://security-tracker.debian.org/tracker/CVE-2020-22916
• https://tukaani.org/xz/
• http://web.archive.org/web/20230918084612/https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability
• https://bugzilla.redhat.com/show_bug.cgi?id=2234987
• https://bugzilla.suse.com/show_bug.cgi?id=1214590
• https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability
• https://github.com/tukaani-project/xz/issues/61

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