SUSE update for openvswitch

Published: 2023-07-17

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-4337 CVE-2022-4338
CWE-ID	CWE-125 CWE-191
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	openSUSE Leap Operating systems & Components / Operating system ovn-doc Operating systems & Components / Operating system package or component openvswitch-doc Operating systems & Components / Operating system package or component libopenvswitch-2_14-0 Operating systems & Components / Operating system package or component openvswitch Operating systems & Components / Operating system package or component ovn-central-debuginfo Operating systems & Components / Operating system package or component ovn-vtep Operating systems & Components / Operating system package or component ovn-host-debuginfo Operating systems & Components / Operating system package or component openvswitch-debugsource Operating systems & Components / Operating system package or component openvswitch-vtep Operating systems & Components / Operating system package or component libovn-20_06-0 Operating systems & Components / Operating system package or component openvswitch-ipsec Operating systems & Components / Operating system package or component openvswitch-debuginfo Operating systems & Components / Operating system package or component ovn Operating systems & Components / Operating system package or component openvswitch-test-debuginfo Operating systems & Components / Operating system package or component ovn-vtep-debuginfo Operating systems & Components / Operating system package or component openvswitch-devel Operating systems & Components / Operating system package or component ovn-host Operating systems & Components / Operating system package or component ovn-debuginfo Operating systems & Components / Operating system package or component python3-ovs Operating systems & Components / Operating system package or component ovn-docker Operating systems & Components / Operating system package or component openvswitch-pki Operating systems & Components / Operating system package or component openvswitch-test Operating systems & Components / Operating system package or component libovn-20_06-0-debuginfo Operating systems & Components / Operating system package or component openvswitch-vtep-debuginfo Operating systems & Components / Operating system package or component ovn-central Operating systems & Components / Operating system package or component libopenvswitch-2_14-0-debuginfo Operating systems & Components / Operating system package or component ovn-devel Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU70471

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4337

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when parsing Auto Attach TLV. A remote attacker can send specially crafted LLDP messages to the affected system, trigger an out-of-bounds read error and read contents of memory on the system of perform a denial of service (DoS) attack.

Mitigation

Update the affected package openvswitch to the latest version.

Vulnerable software versions

openSUSE Leap: 15.5

ovn-doc: before 20.06.2-150400.24.6.1

openvswitch-doc: before 2.14.2-150400.24.6.1

libopenvswitch-2_14-0: before 2.14.2-150400.24.6.1

openvswitch: before 2.14.2-150400.24.6.1

ovn-central-debuginfo: before 20.06.2-150400.24.6.1

ovn-vtep: before 20.06.2-150400.24.6.1

ovn-host-debuginfo: before 20.06.2-150400.24.6.1

openvswitch-debugsource: before 2.14.2-150400.24.6.1

openvswitch-vtep: before 2.14.2-150400.24.6.1

libovn-20_06-0: before 20.06.2-150400.24.6.1

openvswitch-ipsec: before 2.14.2-150400.24.6.1

openvswitch-debuginfo: before 2.14.2-150400.24.6.1

ovn: before 20.06.2-150400.24.6.1

openvswitch-test-debuginfo: before 2.14.2-150400.24.6.1

ovn-vtep-debuginfo: before 20.06.2-150400.24.6.1

openvswitch-devel: before 2.14.2-150400.24.6.1

ovn-host: before 20.06.2-150400.24.6.1

ovn-debuginfo: before 20.06.2-150400.24.6.1

python3-ovs: before 2.14.2-150400.24.6.1

ovn-docker: before 20.06.2-150400.24.6.1

openvswitch-pki: before 2.14.2-150400.24.6.1

openvswitch-test: before 2.14.2-150400.24.6.1

libovn-20_06-0-debuginfo: before 20.06.2-150400.24.6.1

openvswitch-vtep-debuginfo: before 2.14.2-150400.24.6.1

ovn-central: before 20.06.2-150400.24.6.1

libopenvswitch-2_14-0-debuginfo: before 2.14.2-150400.24.6.1

ovn-devel: before 20.06.2-150400.24.6.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232250-2/

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.

2) Integer underflow

EUVDB-ID: #VU70459

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4338

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

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

The vulnerability exists due to integer underflow when parsing Auto Attach TLV. A remote attacker can send specially crafted LLDP messages to the affected system, trigger an integer underflow and execute arbitrary code on the target system.

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

Note, by default interfaces are not configured to process LLDP messages.

Mitigation

Update the affected package openvswitch to the latest version.

Vulnerable software versions

openSUSE Leap: 15.5

ovn-doc: before 20.06.2-150400.24.6.1

openvswitch-doc: before 2.14.2-150400.24.6.1

libopenvswitch-2_14-0: before 2.14.2-150400.24.6.1

openvswitch: before 2.14.2-150400.24.6.1

ovn-central-debuginfo: before 20.06.2-150400.24.6.1

ovn-vtep: before 20.06.2-150400.24.6.1

ovn-host-debuginfo: before 20.06.2-150400.24.6.1

openvswitch-debugsource: before 2.14.2-150400.24.6.1

openvswitch-vtep: before 2.14.2-150400.24.6.1

libovn-20_06-0: before 20.06.2-150400.24.6.1

openvswitch-ipsec: before 2.14.2-150400.24.6.1

openvswitch-debuginfo: before 2.14.2-150400.24.6.1

ovn: before 20.06.2-150400.24.6.1

openvswitch-test-debuginfo: before 2.14.2-150400.24.6.1

ovn-vtep-debuginfo: before 20.06.2-150400.24.6.1

openvswitch-devel: before 2.14.2-150400.24.6.1

ovn-host: before 20.06.2-150400.24.6.1

ovn-debuginfo: before 20.06.2-150400.24.6.1

python3-ovs: before 2.14.2-150400.24.6.1

ovn-docker: before 20.06.2-150400.24.6.1

openvswitch-pki: before 2.14.2-150400.24.6.1

openvswitch-test: before 2.14.2-150400.24.6.1

libovn-20_06-0-debuginfo: before 20.06.2-150400.24.6.1

openvswitch-vtep-debuginfo: before 2.14.2-150400.24.6.1

ovn-central: before 20.06.2-150400.24.6.1

libopenvswitch-2_14-0-debuginfo: before 2.14.2-150400.24.6.1

ovn-devel: before 20.06.2-150400.24.6.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232250-2/

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.