CVE-2021-20275
HIGHCVSS 7.5/10EPSS 1.95%
Last modified
CVE-2021-20275 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found in privoxy before 3.0.32. A invalid read of size two may occur in chunked_body_is_complete() leading to denial of service.. EPSS estimates a 1.95% chance of exploitation in the next 30 days.
Description
A flaw was found in privoxy before 3.0.32. A invalid read of size two may occur in chunked_body_is_complete() leading to denial of service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Privoxy | Privoxy | < 3.0.32 |
| Debian | Debian Linux | 9.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1936666Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00009.htmlThird Party Advisory
- https://security.gentoo.org/glsa/202107-16Third Party Advisory
- https://www.privoxy.org/announce.txtRelease Notes, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1936666Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00009.htmlThird Party Advisory
- https://security.gentoo.org/glsa/202107-16Third Party Advisory
- https://www.privoxy.org/announce.txtRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20275?
A flaw was found in privoxy before 3.0.32. A invalid read of size two may occur in chunked_body_is_complete() leading to denial of service.
How severe is CVE-2021-20275?
CVE-2021-20275 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.95% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20275?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-20275?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST