Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU74579
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-1668
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing IP packets. A remote attacker can send specially crafted IP packets with "ip proto" set to "0" and perform a denial of service (DoS) attack.
Successful exploitation of the vulnerability requires that flow rules contain 'set' actions on other fields in the IP protocol header.
Update the affected package openvswitch to the latest version.
Vulnerable software versionsSUSE Package Hub 15: 15-SP4 - 15-SP5
Legacy Module: 15-SP5
SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5
SUSE Linux Enterprise Server 15: SP4 - SP5
SUSE Linux Enterprise Real Time 15: SP4 - SP5
SUSE Linux Enterprise Desktop 15: SP4 - SP5
Server Applications Module: 15-SP4
SUSE Linux Enterprise Micro: 5.3 - 5.4
SUSE Linux Enterprise High Performance Computing 15: SP4
openSUSE Leap: 15.4 - 15.5
SUSE Manager Retail Branch Server: 4.3
SUSE Manager Server: 4.3
SUSE Manager Proxy: 4.3
ovn-doc: before 20.06.2-150400.24.9.1
openvswitch-doc: before 2.14.2-150400.24.9.1
openvswitch-test-debuginfo: before 2.14.2-150400.24.9.1
libovn-20_06-0-debuginfo: before 20.06.2-150400.24.9.1
ovn: before 20.06.2-150400.24.9.1
openvswitch-debugsource: before 2.14.2-150400.24.9.1
ovn-central-debuginfo: before 20.06.2-150400.24.9.1
ovn-docker: before 20.06.2-150400.24.9.1
ovn-debuginfo: before 20.06.2-150400.24.9.1
ovn-host-debuginfo: before 20.06.2-150400.24.9.1
libovn-20_06-0: before 20.06.2-150400.24.9.1
openvswitch-debuginfo: before 2.14.2-150400.24.9.1
openvswitch-vtep-debuginfo: before 2.14.2-150400.24.9.1
openvswitch: before 2.14.2-150400.24.9.1
ovn-central: before 20.06.2-150400.24.9.1
ovn-host: before 20.06.2-150400.24.9.1
openvswitch-devel: before 2.14.2-150400.24.9.1
openvswitch-ipsec: before 2.14.2-150400.24.9.1
openvswitch-test: before 2.14.2-150400.24.9.1
openvswitch-vtep: before 2.14.2-150400.24.9.1
libopenvswitch-2_14-0: before 2.14.2-150400.24.9.1
ovn-vtep: before 20.06.2-150400.24.9.1
libopenvswitch-2_14-0-debuginfo: before 2.14.2-150400.24.9.1
ovn-vtep-debuginfo: before 20.06.2-150400.24.9.1
ovn-devel: before 20.06.2-150400.24.9.1
python3-ovs: before 2.14.2-150400.24.9.1
openvswitch-pki: before 2.14.2-150400.24.9.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20232296-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.