9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6 High
AI Score
Confidence
Low
0.004 Low
EPSS
Percentile
72.8%
Debian Security Advisory DSA-5560-1 [email protected]
https://www.debian.org/security/ Yves-Alexis Perez
November 20, 2023 https://www.debian.org/security/faq
Package : strongswan
CVE ID : CVE-2023-41913
Florian Picca reported a bug the charon-tkm daemon in strongSwan an IKE/IPsec
suite.
The TKM-backed version of the charon IKE daemon (charon-tkm) doesn't
check the length of received Diffie-Hellman public values before copying
them to a fixed-size buffer on the stack, causing a buffer overflow that
could potentially be exploited for remote code execution by sending a
specially crafted and unauthenticated IKE_SA_INIT message.
For the oldstable distribution (bullseye), this problem has been fixed
in version 5.9.1-1+deb11u4.
For the stable distribution (bookworm), this problem has been fixed in
version 5.9.8-5+deb12u1.
We recommend that you upgrade your strongswan packages.
For the detailed security status of strongswan please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/strongswan
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.6 High
AI Score
Confidence
Low
0.004 Low
EPSS
Percentile
72.8%