8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
8 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
55.9%
Package : openvswitch
Version : 2.10.7+ds1-0+deb10u4
CVE ID : CVE-2023-1668
Debian Bug : 1034042
David Marchand discovered that Open vSwitch, a multilayer, software-based,
Ethernet virtual switch, was vulnerable to crafted IP packets with ip proto
set to 0, potentially causing a denial of service.
Triggering the vulnerability requires an attacker to send a crafted IP
packet with protocol field set to 0 and the flow rules to contain 'set'
actions on other fields in the IP protocol header. The resulting flows will
omit required actions, and fail to mask the IP protocol field, resulting in
a large bucket which captures all IP packets.
For Debian 10 buster, this problem has been fixed in version
2.10.7+ds1-0+deb10u4.
We recommend that you upgrade your openvswitch packages.
For the detailed security status of openvswitch please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/openvswitch
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: PGP signature
8.2 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
8 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
55.9%