CVE-2021-40524
pure-ftpd - security update
7.5
HIGH
CVSS 3.1
EPSS 30.2%
Description
In Pure-FTPd before 1.0.50, an incorrect max_filesize quota mechanism in the server allows attackers to upload files of unbounded size, which may lead to denial of service or a server hang. This occurs because a certain greater-than-zero test does not anticipate an initial -1 value. (Versions 1.0.23 through 1.0.49 are affected.)
How to fix CVE-2021-40524
To remediate CVE-2021-40524, upgrade the affected package to a fixed version below.
- —upgrade to 1.0.49-4.1+deb11u1 or later
- —upgrade to 1.0.49-4.1+deb11u1 or later
Is CVE-2021-40524 being exploited?
Moderate — EPSS is 30.2%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 1.0.49-4.1+deb11u1
- from 0, < 1.0.49-4.1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |