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CVE-2018-17204

Description

An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.

Risk Information

Base Score
4.3
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS Score
Exploitation Probability
1.127

Associated Vulnerability

VulnerabilityOS Platform
Ethernet virtual switch (USN-3873-1) openvswitch-common_2.5.5-0ubuntu0.16.04.2_i386.debLinux
Ethernet virtual switch (USN-3873-1) openvswitch-common_2.5.5-0ubuntu0.16.04.2_amd64.debLinux
Ethernet virtual switch (USN-3873-1) openvswitch-common_2.9.2-0ubuntu0.18.04.3_i386.debLinux
Ethernet virtual switch (USN-3873-1) openvswitch-common_2.9.2-0ubuntu0.18.04.3_amd64.debLinux
SUSE-SU-2018:4128-1(SUSE Linux Enterprise Server 12-SP3 ) openvswitch-2.7.6-3.23.1.x86_64.rpmLinux
SUSE-SU-2018:4128-1(SUSE Linux Enterprise Server 12-SP3 ) openvswitch-debuginfo-2.7.6-3.23.1.x86_64.rpmLinux
SUSE-SU-2018:4128-1(SUSE Linux Enterprise Server 12-SP3 ) openvswitch-debugsource-2.7.6-3.23.1.x86_64.rpmLinux
Reachable Assertion Vulnerability (CVE-2018-17204)NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234