CVE-2021-20275
Ubuntu Security Notice USN-4886-1
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se encontró un fallo en privoxy versiones anteriores a 3.0.32. Una lectura no válida de tamaño dos puede ocurrir en la función chunked_body_is_complete() conllevando a una denegación de servicio
It was discovered that Privoxy incorrectly handled CGI requests. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. It was discovered that Privoxy incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. Various other issues were also addressed.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-12-17 CVE Reserved
- 2021-03-09 CVE Published
- 2024-08-03 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-125: Out-of-bounds Read
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1936666 | 2022-08-05 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202107-16 | 2022-08-05 | |
| https://www.privoxy.org/announce.txt | 2022-08-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Privoxy Search vendor "Privoxy" | Privoxy Search vendor "Privoxy" for product "Privoxy" | < 3.0.32 Search vendor "Privoxy" for product "Privoxy" and version " < 3.0.32" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||