{"id":"OESA-2021-1179","summary":"openvswitch security update","details":"Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license.\r\n\r\nSecurity Fix(es):\r\n\r\nA vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.(CVE-2020-35498)\r\n\r\nA 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.(CVE-2020-27827)\r\n\r\nBuffer overflow in the lldp_decode function in daemon/protocols/lldp.c in lldpd before 0.8.0 allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via vectors involving large management addresses and TLV boundaries.(CVE-2015-8011)","modified":"2026-08-18T01:15:43.889462730Z","published":"2021-05-06T11:04:25Z","upstream":["CVE-2015-8011","CVE-2020-27827","CVE-2020-35498"],"database_specific":{"severity":"Critical"},"references":[{"type":"ADVISORY","url":"https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1179"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35498"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27827"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2015-8011"}],"affected":[{"package":{"name":"openvswitch","ecosystem":"openEuler:20.03-LTS-SP1","purl":"pkg:rpm/openEuler/openvswitch&distro=openEuler-20.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.0-11.oe1"}]}],"ecosystem_specific":{"aarch64":["openvswitch-help-2.12.0-11.oe1.aarch64.rpm","openvswitch-devel-2.12.0-11.oe1.aarch64.rpm","openvswitch-debuginfo-2.12.0-11.oe1.aarch64.rpm","openvswitch-2.12.0-11.oe1.aarch64.rpm","openvswitch-debugsource-2.12.0-11.oe1.aarch64.rpm"],"src":["openvswitch-2.12.0-11.oe1.src.rpm"],"x86_64":["openvswitch-devel-2.12.0-11.oe1.x86_64.rpm","openvswitch-debuginfo-2.12.0-11.oe1.x86_64.rpm","openvswitch-help-2.12.0-11.oe1.x86_64.rpm","openvswitch-2.12.0-11.oe1.x86_64.rpm","openvswitch-debugsource-2.12.0-11.oe1.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2021-1179.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}