CVE-2021-31807
6.5
MEDIUM
CVSS 3.1
EPSS 33.7%
Description
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
How to fix CVE-2021-31807
To remediate CVE-2021-31807, upgrade the affected package to a fixed version below.
- Alpine/squid—upgrade to 4.15-r0 or later
- —upgrade to 4.13-10 or later
Is CVE-2021-31807 being exploited?
Moderate — EPSS is 33.7%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 4.15-r0
- from 0, < 4.13-10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |