CVE-2023-41913
strongswan - security update
9.8
CRITICAL
CVSS 3.1
EPSS 5.5%
Description
strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.
How to fix CVE-2023-41913
To remediate CVE-2023-41913, upgrade the affected package to a fixed version below.
- Alpine/strongswan—upgrade to 5.9.12-r0 or later
- —upgrade to 5.9.1-1+deb11u4 or later
- —upgrade to 5.7.2-1+deb10u4 or later
- —upgrade to 5.9.1-1+deb11u4 or later
Is CVE-2023-41913 being exploited?
Moderate — EPSS is 5.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (4)
- from 0, < 5.9.12-r0
- from 0, < 5.9.1-1+deb11u4
- from 0, < 5.7.2-1+deb10u4
- from 0, < 5.9.1-1+deb11u4
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 |