CVE-2018-1087
Vulnerability from cvelistv5
Published
2018-05-15 16:00
Modified
2024-08-05 03:51
Severity ?
8.0 (High) - CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.
References
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2018/05/08/5Mailing List
secalert@redhat.comhttp://www.securityfocus.com/bid/104127Third Party Advisory, VDB Entry
secalert@redhat.comhttp://www.securitytracker.com/id/1040862Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:1318Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:1345Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:1347Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:1348Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:1355Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:1524Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/security/vulnerabilities/pop_ssThird Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087Issue Tracking
secalert@redhat.comhttps://usn.ubuntu.com/3641-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3641-2/Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2018/dsa-4196Third Party Advisory
Impacted products
kernelKVM
Show details on NVD website

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  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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