CVE-2020-2732 (GCVE-0-2020-2732)
Vulnerability from cvelistv5
Published
2020-04-08 21:10
Modified
2024-09-30 15:47
Severity ?
5.8 (Medium) - CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
  • Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise Linux server. Successful attacks of this vulnerability can result in authorized ability to cause a hang or frequently repeatable crash (complete DOS) of Linux Server.
Summary
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.
References
secalert_us@oracle.com https://bugzilla.redhat.com/show_bug.cgi?id=1805135 Issue Tracking, Third Party Advisory
secalert_us@oracle.com https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec Patch, Third Party Advisory
secalert_us@oracle.com https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c Patch, Third Party Advisory
secalert_us@oracle.com https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d Patch, Third Party Advisory
secalert_us@oracle.com https://linux.oracle.com/errata/ELSA-2020-5540.html Third Party Advisory
secalert_us@oracle.com https://linux.oracle.com/errata/ELSA-2020-5542.html Third Party Advisory
secalert_us@oracle.com https://linux.oracle.com/errata/ELSA-2020-5543.html Third Party Advisory
secalert_us@oracle.com https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
secalert_us@oracle.com https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
secalert_us@oracle.com https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
secalert_us@oracle.com https://www.debian.org/security/2020/dsa-4667
secalert_us@oracle.com https://www.debian.org/security/2020/dsa-4698
secalert_us@oracle.com https://www.openwall.com/lists/oss-security/2020/02/25/3 Mailing List, Third Party Advisory
secalert_us@oracle.com https://www.spinics.net/lists/kvm/msg208259.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://bugzilla.redhat.com/show_bug.cgi?id=1805135 Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://linux.oracle.com/errata/ELSA-2020-5540.html Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://linux.oracle.com/errata/ELSA-2020-5542.html Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://linux.oracle.com/errata/ELSA-2020-5543.html Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2020/dsa-4667
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2020/dsa-4698
af854a3a-2127-422b-91ae-364da2661108 https://www.openwall.com/lists/oss-security/2020/02/25/3 Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.spinics.net/lists/kvm/msg208259.html Patch, Third Party Advisory
Impacted products
Vendor Product Version
Oracle Corporation Oracle Linux Version: 7
Version: 6
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