CVE-2016-5412
medium
CVSS v3
6.5
CVSS v2
4.6
VIR risk
6.5
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.
Predictions
Exploit likelihood
65%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-5412
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-5412.html
Vendor advisory: secalert@redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=1349916
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.7.2-1 |
| debian | bullseye | fixed | 4.7.2-1 |
| debian | forky | fixed | 4.7.2-1 |
| debian | sid | fixed | 4.7.2-1 |
| debian | trixie | fixed | 4.7.2-1 |
| linux-kernel | affected | |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93d17397e4e2182fdaad503e2f9da46202c0f1c3
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f024ee098476a3e620232e4a78cfac505f121245
- http://rhn.redhat.com/errata/RHSA-2016-2574.html
- http://www.openwall.com/lists/oss-security/2016/07/28/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1349916
- https://github.com/torvalds/linux/commit/93d17397e4e2182fdaad503e2f9da46202c0f1c3
- https://github.com/torvalds/linux/commit/f024ee098476a3e620232e4a78cfac505f121245
- https://www.suse.com/security/cve/CVE-2016-5412.html
- https://security-tracker.debian.org/tracker/CVE-2016-5412
CWEs
CWE-399
Verify integrity in audit chain (admin only). AS-IS.