High severity · published Mar 25, 2021
CVE-2021-20217
A flaw was found in Privoxy in versions before 3.0.31
7.5
CVSS
1.4%
EPSS
No
On KEV
Description
A flaw was found in Privoxy in versions before 3.0.31. An assertion failure triggered by a crafted CGI request may lead to denial of service. The highest threat from this vulnerability is to system availability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
Privoxy · Privoxy
before 3.0.31 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20217
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20217
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1923252
Third Party Advisory
https://security.gentoo.org/glsa/202107-16
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