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 openvswitch3 to the latest version.
Vulnerable software versionsServer Applications Module: 15-SP5
SUSE Linux Enterprise Server for SAP Applications 15: SP5
SUSE Linux Enterprise Server 15: SP5
SUSE Linux Enterprise Real Time 15: SP5
SUSE Linux Enterprise High Performance Computing 15: SP5
openSUSE Leap: 15.5
openvswitch3-doc: before 3.1.0-150500.3.3.1
ovn3-doc: before 23.03.0-150500.3.3.1
libopenvswitch-3_1-0: before 3.1.0-150500.3.3.1
ovn3-devel: before 23.03.0-150500.3.3.1
ovn3-vtep: before 23.03.0-150500.3.3.1
libovn-23_03-0: before 23.03.0-150500.3.3.1
python3-ovs3: before 3.1.0-150500.3.3.1
ovn3-docker: before 23.03.0-150500.3.3.1
openvswitch3-devel: before 3.1.0-150500.3.3.1
libovn-23_03-0-debuginfo: before 23.03.0-150500.3.3.1
openvswitch3-pki: before 3.1.0-150500.3.3.1
openvswitch3-test-debuginfo: before 3.1.0-150500.3.3.1
openvswitch3-vtep-debuginfo: before 3.1.0-150500.3.3.1
libopenvswitch-3_1-0-debuginfo: before 3.1.0-150500.3.3.1
openvswitch3-test: before 3.1.0-150500.3.3.1
ovn3-central: before 23.03.0-150500.3.3.1
openvswitch3-debugsource: before 3.1.0-150500.3.3.1
openvswitch3-debuginfo: before 3.1.0-150500.3.3.1
ovn3-central-debuginfo: before 23.03.0-150500.3.3.1
ovn3-debuginfo: before 23.03.0-150500.3.3.1
ovn3: before 23.03.0-150500.3.3.1
openvswitch3-vtep: before 3.1.0-150500.3.3.1
ovn3-vtep-debuginfo: before 23.03.0-150500.3.3.1
openvswitch3: before 3.1.0-150500.3.3.1
ovn3-host-debuginfo: before 23.03.0-150500.3.3.1
openvswitch3-ipsec: before 3.1.0-150500.3.3.1
ovn3-host: before 23.03.0-150500.3.3.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20232536-1/
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.