CVE-2021-23192
7.5
HIGH
CVSS 3.1
EPSS 0.11%
Description
A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.
How to fix CVE-2021-23192
To remediate CVE-2021-23192, upgrade the affected package to a fixed version below.
- Alpine/samba—upgrade to 4.13.17-r0 or later
- —upgrade to 2:4.13.13+dfsg-1~deb11u2 or later
Is CVE-2021-23192 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.13.17-r0
- from 0, < 2:4.13.13+dfsg-1~deb11u2
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:H/A:N |