CVE-2020-14058: High severity squid web proxy cache vulnerability
An issue was discovered in Squid before 4.12 and 5.x before 5.0.3. Due to use of a potentially dangerous function, Squid and the default certificate validation helper are vulnerable to a Denial of Service when opening a TLS connection to an attacker-controlled server for HTTPS. This occurs because unrecognized error values are mapped to NULL, but later code expects that each error value is mapped to a valid error string.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-14058.
What is the severity of CVE-2020-14058?
The severity of CVE-2020-14058 is high with a severity value of 7.5.
Which software versions are affected by CVE-2020-14058?
CVE-2020-14058 affects Squid versions before 4.12 and 5.x before 5.0.3.
How can this vulnerability be exploited?
This vulnerability can be exploited by opening a TLS connection to an attacker-controlled server for HTTPS, which leads to a Denial of Service.
Where can I find more information about CVE-2020-14058?
More information about CVE-2020-14058 can be found at the following references: [link1], [link2], [link3].