CVE-2023-40546
shim - security update
5.5
MEDIUM
CVSS 3.1
EPSS 0.03%
Description
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
How to fix CVE-2023-40546
To remediate CVE-2023-40546, upgrade the affected package to a fixed version below.
- —upgrade to 15.8-1~deb11u1 or later
- —upgrade to 15.8-1~deb10u1 or later
Is CVE-2023-40546 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 15.8-1~deb11u1
- from 0, < 15.8-1~deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |