Improper input validation in Privoxy
CVE-2021-20273
A flaw was found in privoxy before 3.0.32. A crash can occur via a crafted CGI request if Privoxy is toggled off.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Privoxy
- Debian Linux — versions 9.0
- Privoxy — versions privoxy 3.0.32
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.privoxy.org/announce.txt (Release Notes, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2021/03/msg00009.html (mailing-list, Third Party Advisory)
- security.gentoo.org/glsa/202107-16 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20273?
- CVE-2021-20273 is a high-severity vulnerability in Privoxy, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2021-03-09.
- How severe is CVE-2021-20273?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-20273 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.