Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2021-20217 CVE-2021-20216 |
CWE-ID | CWE-617 CWE-401 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
privoxy Server applications / Web servers |
Vendor | privoxy |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
Updated: 07.02.2021
Assigned CVE-IDs.
EUVDB-ID: #VU50155
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20217
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion. A remote attacker can send a specially crafted CGI request to the affected server and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Vulnerable software versionsprivoxy: 3.0 - 3.0.30
External linkshttp://seclists.org/oss-sec/2021/q1/91
http://www.privoxy.org/3.0.31/user-manual/whatsnew.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU50157
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20216
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak during decompression. A remote attacker can send specially crafted request to the web server and perform denial of service attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsprivoxy: 3.0 - 3.0.30
External linkshttp://seclists.org/oss-sec/2021/q1/91
http://www.privoxy.org/3.0.31/user-manual/whatsnew.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.