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5.5
CVSSv3

CVE-2023-5366

Published: 06/10/2023 Updated: 23/03/2024
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 0

Vulnerability Summary

A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local malicious user to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.

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Vendor Advisories

Red Hat:
Description<!---->A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addressesA flaw was fou ...

Mailing Lists

Full Disclosure: [ADVISORY] CVE-2023-5366: Open vSwitch: OpenFlow match on Neighbor Discovery Target may be ignored
Description =========== In multiple versions of Open vSwitch, if OpenFlow rules on a switch contain a match on a Target Address (nd_target) of Neighbor Discovery IPv6 packets (Neighbor Solicitation or Neighbor Advertisement) without also matching on ICMPv6 Code (icmp_code or icmpv6_code) field being zero, the match on the Target Address can be ign ...

References

CWE-345https://access.redhat.com/security/cve/CVE-2023-5366https://bugzilla.redhat.com/show_bug.cgi?id=2006347http://www.openwall.com/lists/oss-security/2024/02/08/4https://lists.debian.org/debian-lts-announce/2024/02/msg00004.htmlhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VYYUBF6OW2JG7VOFEOROHXGSJCTES3QO/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFZADABUDOFI2KZIRQBYFZCIKH55RGY3/https://nvd.nist.govhttps://seclists.org/oss-sec/2024/q1/119https://access.redhat.com/security/cve/cve-2023-5366
CVSSv3
CVSSv2
CVSSv3
VMScore
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