FKIE_CVE-2017-7518

Vulnerability from fkie_nvd - Published: 2018-07-30 15:29 - Updated: 2024-11-21 03:32
Severity ?
5.5 (Medium) - CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.
References
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2017/06/23/5Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/99263Third Party Advisory, VDB Entry
secalert@redhat.comhttp://www.securitytracker.com/id/1038782Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/articles/3290921Permissions Required, Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:0395Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:0412Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7518Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3619-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3619-2/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3754-1/Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2017/dsa-3981Third Party Advisory
secalert@redhat.comhttps://www.spinics.net/lists/kvm/msg151817.htmlMailing List, Patch
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2017/06/23/5Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99263Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038782Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/articles/3290921Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:0395Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:0412Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7518Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3619-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3754-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2017/dsa-3981Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.spinics.net/lists/kvm/msg151817.htmlMailing List, Patch
Impacted products
Vendor Product Version
redhat enterprise_linux 7.0
redhat enterprise_linux_desktop 7.0
redhat enterprise_linux_server 7.0
redhat enterprise_linux_server_aus 7.4
redhat enterprise_linux_server_eus 7.4
redhat enterprise_linux_server_eus 7.5
redhat enterprise_linux_workstation 7.0
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
debian debian_linux 8.0
debian debian_linux 9.0
linux linux_kernel *
To clipboard 

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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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