Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | >= 3.1, <= 3.5.28 |
| Fedoraproject | Fedora | 31 |
| Netapp | Cloud Manager | - |
References
- http://www.squid-cache.org/Advisories/SQUID-2020_6.txtVendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-93f5fda134a2a010b84ffePatchVendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-c6d1a4f6a2cbebceebc8a3PatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.netapp.com/advisory/ntap-20210312-0001/Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2020_6.txtVendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-93f5fda134a2a010b84ffePatchVendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-c6d1a4f6a2cbebceebc8a3PatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.netapp.com/advisory/ntap-20210312-0001/Third Party Advisory
FAQ
What is CVE-2020-14058?
CVE-2020-14058 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 Ser...
How severe is CVE-2020-14058?
CVE-2020-14058 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-14058?
Check the references section above for vendor advisories and patch information. Affected products include: Squid-Cache Squid, Fedoraproject Fedora, Netapp Cloud Manager.