CVE-2017-7518: medium-severity vulnerability in [UNKNOWN] Kernel:
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.7%
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.
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Affected products
[UNKNOWN] · Kernel:References
https://access.redhat.com/articles/3290921https://access.redhat.com/errata/RHSA-2018:0395https://access.redhat.com/errata/RHSA-2018:0412https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7518https://usn.ubuntu.com/3619-1/https://usn.ubuntu.com/3619-2/https://usn.ubuntu.com/3754-1/https://www.debian.org/security/2017/dsa-3981https://www.spinics.net/lists/kvm/msg151817.htmlhttp://www.openwall.com/lists/oss-security/2017/06/23/5http://www.securityfocus.com/bid/99263http://www.securitytracker.com/id/1038782