CVE-2023-1668
What it is
A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 1.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.2% in the next 30 days (EPSS).
- Severity: 8.2 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.2% · EPSS, next 30 days
- Weakness
- CWE-670
- Record status
- Modified
Affected
- Cloudbase Open Vswitch < 2.13.11
- Cloudbase Open Vswitch < 2.14.9
- Cloudbase Open Vswitch < 2.15.8
- Cloudbase Open Vswitch < 2.16.7
- Cloudbase Open Vswitch < 2.17.6
- Cloudbase Open Vswitch < 3.0.4
- Cloudbase Open Vswitch 3.1.0
- Debian Linux 11.0
Attack profile CVSS 3.1 · 8.2
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-1668.md and follow it. Check whether this project is affected by CVE-2023-1668. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://www.openwall.com/lists/oss-security/2023/04/06/1
- https://www.openwall.com/lists/oss-security/2023/04/06/1
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2137666
- https://lists.debian.org/debian-lts-announce/2023/05/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2GUNS3WSJG4TUDKZ5L7FXGJMVOD6EJZ/
- https://security.gentoo.org/glsa/202311-16
- https://www.debian.org/security/2023/dsa-5387
- https://www.openwall.com/lists/oss-security/2023/04/06/1
- https://bugzilla.redhat.com/show_bug.cgi?id=2137666
- https://lists.debian.org/debian-lts-announce/2023/05/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2GUNS3WSJG4TUDKZ5L7FXGJMVOD6EJZ/
- https://security.gentoo.org/glsa/202311-16
- https://www.debian.org/security/2023/dsa-5387
- https://www.openwall.com/lists/oss-security/2023/04/06/1