Medium severity · published Aug 22, 2023
CVE-2020-22916
An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file
5.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XZ
XZ · Tukaani
5.2.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-22916
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-22916
web.archive.org
http://web.archive.org/web/20230918084612/https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2234987
bugzilla.suse.com
https://bugzilla.suse.com/show_bug.cgi?id=1214590
Broken Link
https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability
github.com
https://github.com/tukaani-project/xz/issues/61
security-tracker.debian.org
https://security-tracker.debian.org/tracker/CVE-2020-22916
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