CVE-2020-11945
9.8
CRITICAL
CVSS 3.1
EPSS 28.5%
Description
An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).
How to fix CVE-2020-11945
To remediate CVE-2020-11945, upgrade the affected package to a fixed version below.
- —upgrade to 4.11-r0 or later
- —upgrade to 4.11-1 or later
Is CVE-2020-11945 being exploited?
Moderate — EPSS is 28.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 4.11-r0
- from 0, < 4.11-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |