CVE-2021-20216 — Vulnetix

CVE-2021-20216 PUBLISHED

A flaw was found in Privoxy in versions before 3.0.31. A memory leak that occurs when decompression fails unexpectedly may lead to a denial of service. The highest threat from this vulnerability is to system availability.

EPSS 1.28% · 80.0th percentile

Risk Scores

EPSS Score

1.28%

80.0th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	privoxy	0, 3.0.26-5, 3.0.26-4
Ubuntu:Pro:14.04:LTS	privoxy	3.0.21-2, 3.0.21-1, 3.0.21-7+deb8u1build0.14.04.1
Ubuntu:20.04:LTS	privoxy	0, 3.0.28-2
Ubuntu:16.04:LTS	privoxy	3.0.23-5, 3.0.23-4, 3.0.24-1

Exploit Intelligence

https://bugzilla.redhat.com/show_bug.cgi?id=1923256 (circl)
https://www.openwall.com/lists/oss-security/2021/01/31/2 (circl)
https://www.privoxy.org/3.0.31/user-manual/whatsnew.html (circl)
GLSA-202107-16 (circl)

Timeline

Feb 5, 2021 CVE Published
Apr 14, 2021 EPSS Score
Jun 23, 2021 EPSS Score
Oct 26, 2021 EPSS Score
Dec 27, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 28, 2022 EPSS Score
Apr 1, 2022 EPSS Score
May 1, 2022 EPSS Score
Jul 3, 2022 EPSS Score
Nov 6, 2022 EPSS Score
Jan 8, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2021-20216 third-party-advisory
https://www.openwall.com/lists/oss-security/2021/01/31/2 third-party-advisory
https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=f431d61740cc03c1c5f6b7f9c7a4a8d0bedd70dd third-party-advisory
https://ubuntu.com/security/notices/USN-4886-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2021-20216 third-party-advisory

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