Medium severity · published Aug 22, 2023
CVE-2021-46179
Reachable Assertion vulnerability in upx before 4.0.0 allows attackers to cause a denial of service via crafted file passed to the the readx function
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
Reachable Assertion vulnerability in upx before 4.0.0 allows attackers to cause a denial of service via crafted file passed to the the readx function.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UP
Upx · Upx
before 4.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46179
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46179
Issue Tracking
https://github.com/upx/upx/issues/545
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