Buffer overflow in strongSwan - CVE-2023-41913

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Main Vulnerability Database Vulnerabilities #VU83305

Buffer overflow in strongSwan - CVE-2023-41913

Published: November 20, 2023


Vulnerability identifier: #VU83305
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-41913
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in the TKM-backed version of the charon IKE daemon due to a missing check for DH Public Values in charon-tkm. A remote attacker can send specially crafted data to the application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

strongSwan
Gentoo Linux
Debian Linux
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Workstation Extension 15
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Enterprise Storage
Fedora
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
SUSE Package Hub 15
Basesystem Module
openSUSE Leap
Ubuntu
openEuler
libstrongswan (Ubuntu package)
strongswan (Ubuntu package)
strongswan-help
strongswan-debuginfo
strongswan-debugsource
strongswan
strongswan-doc
strongswan-libs0-debuginfo
strongswan-ipsec-debuginfo
strongswan-hmac
strongswan-ipsec
strongswan-libs0
strongswan (Debian package)
strongswan-nm-debuginfo
strongswan-sqlite-debuginfo
strongswan-mysql-debuginfo
strongswan-nm
strongswan-mysql
strongswan-sqlite
net-vpn/strongswan
Juniper Cloud Native Router
Junos cRPD

How to mitigate CVE-2023-41913

Install updates from vendor's website.

strongSwan - update to 5.9.12
libstrongswan (Ubuntu package) - addressed in versions Ubuntu Pro, 5.8.2-1ubuntu3.6, 5.9.5-2ubuntu2.2, 5.9.8-3ubuntu4.1, 5.9.11-1ubuntu1.1
strongswan (Ubuntu package) - addressed in versions Ubuntu Pro, 5.8.2-1ubuntu3.6, 5.9.5-2ubuntu2.2, 5.9.8-3ubuntu4.1, 5.9.11-1ubuntu1.1
strongswan-help - update to 5.7.2-11
strongswan-debuginfo - update to 5.7.2-11
strongswan-debugsource - update to 5.7.2-11
strongswan - update to 5.7.2-11
strongswan-debuginfo - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-doc - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-libs0-debuginfo - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-ipsec-debuginfo - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-hmac - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-ipsec - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-debugsource - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-libs0 - addressed in versions 5.8.2-150000.4.23.2, 5.8.2-150200.11.42.2, 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan (Debian package) - addressed in versions 5.9.1-1+deb11u4, 5.9.8-5+deb12u1
strongswan - addressed in versions 5.9.10-2.el8, 5.9.10-2.el9, 5.9.14-1.fc40, 5.9.14-1.fc41, 5.9.14-5.el10_0
strongswan-nm-debuginfo - addressed in versions 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-sqlite-debuginfo - addressed in versions 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-mysql-debuginfo - addressed in versions 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-nm - addressed in versions 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-mysql - addressed in versions 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
strongswan-sqlite - addressed in versions 5.9.11-150400.19.17.2, 5.9.11-150500.5.6.1
net-vpn/strongswan - update to 5.9.13
Juniper Cloud Native Router - update to 23.4R1
Junos cRPD - update to 23.4R1

External References

Related Security Bulletins