Anolis OS update for openvswitch

1) Out-of-bounds read

EUVDB-ID: #VU86295

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-3966

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when handling Geneve packets. A remote attacker can send specially crafted Geneve packets with HF offload to the system, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 23

openvswitch-test: before 2.17.6-3

openvswitch-doc: before 2.17.6-3

python3-openvswitch: before 2.17.6-3

openvswitch-testcontroller: before 2.17.6-3

openvswitch-ipsec: before 2.17.6-3

openvswitch-devel: before 2.17.6-3

openvswitch: before 2.17.6-3

network-scripts-openvswitch: before 2.17.6-3

CPE2.3

• cpe:2.3:o:openanolis:anolis_os:23:*:*:*:*:*:*:*
• cpe:2.3:o:openanolis:openvswitch-test:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:o:openanolis:openvswitch-doc:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:o:openanolis:python3-openvswitch:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:o:openanolis:openvswitch-testcontroller:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:o:openanolis:openvswitch-ipsec:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:o:openanolis:openvswitch-devel:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:o:openanolis:openvswitch:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:o:openanolis:network-scripts-openvswitch:*:*:*:*:*:anolis_os:*:*

External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0441

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.