Openvswitch: >> Openvswitch Security Vulnerabilities
A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.
CVSS Score
7.5
EPSS Score
0.0
Published
2024-02-22
openvswitch 2.17.8 was discovered to contain a memory leak via the function xmalloc__ in openvswitch-2.17.8/lib/util.c.
CVSS Score
7.5
EPSS Score
0.001
Published
2024-01-19
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 addresses.
CVSS Score
7.1
EPSS Score
0.0
Published
2023-10-06
An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.
CVSS Score
9.8
EPSS Score
0.005
Published
2023-01-10
An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.
CVSS Score
9.8
EPSS Score
0.004
Published
2023-01-10
The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.
CVSS Score
5.8
EPSS Score
0.002
Published
2022-09-08
A flaw was found in dpdk. This flaw allows a malicious vhost-user master to attach an unexpected number of fds as ancillary data to VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD messages that are not closed by the vhost-user slave. By sending such messages continuously, the vhost-user master exhausts available fd in the vhost-user slave process, leading to a denial of service.
CVSS Score
6.5
EPSS Score
0.001
Published
2022-08-29
A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.
CVSS Score
7.5
EPSS Score
0.001
Published
2022-08-23
Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.
CVSS Score
5.5
EPSS Score
0.001
Published
2021-07-20
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
CVSS Score
7.5
EPSS Score
0.004
Published
2021-03-18
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