Ubuntu Security Notice USN-5826-1
January 25, 2023
privoxy vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in Privoxy.
Software Description:
– privoxy: Privacy enhancing HTTP Proxy
Details:
Joshua Rogers discovered that Privoxy incorrectly handled memory
allocation. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2021-44540)
Artem Ivanov discovered that Privoxy incorrectly handled input
validations. An
attacker could possibly use this issue to perform cross-site scripting
(XSS) attacks.
(CVE-2021-44543)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
privoxy 3.0.28-2ubuntu0.2
Ubuntu 18.04 LTS:
privoxy 3.0.26-5ubuntu0.3
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5826-1
CVE-2021-44540, CVE-2021-44543
