Home/CVE/A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is
CVE

CVE-2021-20212

A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is

A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is skipped due to a pcre error leading to a system crash.

HIGH · CVSS 7.5 EPSS 0.00697
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-401Missing Release of Memory after Effective Lifetime
▤

Affected Products & Versions

1
privoxy< 3.0.29
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Mar 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
usnUSN-4886-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1928736Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202107-16Third Party Advisory
https://www.privoxy.org/3.0.29/user-manual/whatsnew.htmlRelease NotesVendor Advisory
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