CVE-2017-15306

low-risk
Published 2017-11-06

The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (10)

Patch http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6411...
Mailing List http://openwall.com/lists/oss-security/2017/11/06/6
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
Third Party Advisory http://www.securityfocus.com/bid/101693
Patch https://github.com/torvalds/linux/commit/ac64115a66c18c01745bbd3c47a36b124e5fd8c...
Patch http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6411...
Mailing List http://openwall.com/lists/oss-security/2017/11/06/6
Release Notes http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
Third Party Advisory http://www.securityfocus.com/bid/101693
Patch https://github.com/torvalds/linux/commit/ac64115a66c18c01745bbd3c47a36b124e5fd8c...
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal