CVE-2016-5412

medium

Description

arch/powerpc/kvm/book3s_hv_rmhandlers.S in the Linux kernel through 4.7 on PowerPC platforms, when CONFIG_KVM_BOOK3S_64_HV is enabled, allows guest OS users to cause a denial of service (host OS infinite loop) by making a H_CEDE hypercall during the existence of a suspended transaction.

References

http://www.openwall.com/lists/oss-security/2016/07/28/2

https://bugzilla.redhat.com/show_bug.cgi?id=1349916

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93d17397e4e2182fdaad503e2f9da46202c0f1c3

https://github.com/torvalds/linux/commit/93d17397e4e2182fdaad503e2f9da46202c0f1c3

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f024ee098476a3e620232e4a78cfac505f121245

https://github.com/torvalds/linux/commit/f024ee098476a3e620232e4a78cfac505f121245

http://rhn.redhat.com/errata/RHSA-2016-2574.html

Details

Source: MITRE

Published: 2016-08-06

Updated: 2023-02-12

Type: CWE-399

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.1

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM