vulnerability
Ubuntu: (Multiple Advisories) (CVE-2017-7518): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Jul 8, 2017 | Apr 25, 2018 | Aug 18, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Jul 8, 2017
Added
Apr 25, 2018
Modified
Aug 18, 2025
Description
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.
Solutions
ubuntu-upgrade-linux-image-3-13-0-157-genericubuntu-upgrade-linux-image-3-13-0-157-generic-lpaeubuntu-upgrade-linux-image-3-13-0-157-lowlatencyubuntu-upgrade-linux-image-3-13-0-157-powerpc-e500ubuntu-upgrade-linux-image-3-13-0-157-powerpc-e500mcubuntu-upgrade-linux-image-3-13-0-157-powerpc-smpubuntu-upgrade-linux-image-3-13-0-157-powerpc64-embubuntu-upgrade-linux-image-3-13-0-157-powerpc64-smpubuntu-upgrade-linux-image-4-4-0-1016-awsubuntu-upgrade-linux-image-4-4-0-1020-kvmubuntu-upgrade-linux-image-4-4-0-1054-awsubuntu-upgrade-linux-image-4-4-0-1086-raspi2ubuntu-upgrade-linux-image-4-4-0-1088-snapdragonubuntu-upgrade-linux-image-4-4-0-119-genericubuntu-upgrade-linux-image-4-4-0-119-generic-lpaeubuntu-upgrade-linux-image-4-4-0-119-lowlatencyubuntu-upgrade-linux-image-4-4-0-119-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-119-powerpc-smpubuntu-upgrade-linux-image-4-4-0-119-powerpc64-embubuntu-upgrade-linux-image-4-4-0-119-powerpc64-smpubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-powerpc-e500ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragon
References
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