CVE-2017-7518 (GCVE-0-2017-7518)
Vulnerability from cvelistv5
Published
2018-07-30 13:00
Modified
2024-08-05 16:04
Severity ?
5.5 (Medium) - CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE
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
https://access.redhat.com/errata/RHSA-2018:0412 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/articles/3290921 x_refsource_CONFIRM
https://usn.ubuntu.com/3619-2/ vendor-advisory, x_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:0395 vendor-advisory, x_refsource_REDHAT
https://usn.ubuntu.com/3754-1/ vendor-advisory, x_refsource_UBUNTU
http://www.securitytracker.com/id/1038782 vdb-entry, x_refsource_SECTRACK
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7518 x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2017/06/23/5 mailing-list, x_refsource_MLIST
https://usn.ubuntu.com/3619-1/ vendor-advisory, x_refsource_UBUNTU
https://www.debian.org/security/2017/dsa-3981 vendor-advisory, x_refsource_DEBIAN
https://www.spinics.net/lists/kvm/msg151817.html mailing-list, x_refsource_MLIST
http://www.securityfocus.com/bid/99263 vdb-entry, x_refsource_BID
Impacted products
Vendor Product Version
[UNKNOWN] Kernel: Version: 4.12
 Create a notification for this product.
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