CVE-2020-14058
Last modified
CVE-2020-14058 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.61% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | >= 3.1, <= 3.5.28 |
| Squid-Cache | Squid | >= 4.0, < 4.12 |
| Squid-Cache | Squid | >= 5.0, < 5.0.3 |
| Fedoraproject | Fedora | 31 |
| Netapp | Cloud Manager | All versions |
References
- http://www.squid-cache.org/Advisories/SQUID-2020_6.txtVendor Advisory
- https://security.netapp.com/advisory/ntap-20210312-0001/Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2020_6.txtVendor Advisory
- https://security.netapp.com/advisory/ntap-20210312-0001/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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