CVE-2015-3456 EXPLOIT
7.7
HIGH · CVSS 2.0 · EPSS 15.3% (pctl 97)
Patch early
A public exploit exists.
Description
The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a denial of service (out-of-bounds write and guest crash) or possibly execute arbitrary code via the (1) FD_CMD_READ_ID, (2) FD_CMD_DRIVE_SPECIFICATION_COMMAND, or other unspecified commands, aka VENOM.
Scoring
| CVSS | 7.7 (HIGH, v2.0) |
|---|---|
| Vector | AV:A/AC:L/Au:S/C:C/I:C/A:C |
| EPSS | 15.28% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2015-05-13 |
| Last modified | 2026-06-17 |
Affected (5)
| Vendor | Product |
|---|---|
| qemu | qemu |
| redhat | enterprise linux |
| redhat | enterprise virtualization |
| redhat | openstack |
| xen | xen |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | QEMU - Floppy Disk Controller (FDC) (PoC) | 2015-05-18 |
References
- http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=e907746266721f305d67bc0718795fedee2e824c
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10693
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158072.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00019.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00001.html
- http://lists.opensuse.org/opensuse-updates/2015-08/msg00021.html
- http://marc.info/?l=bugtraq&m=143229451215900&w=2
- http://marc.info/?l=bugtraq&m=143387998230996&w=2
- http://rhn.redhat.com/errata/RHSA-2015-0998.html
- http://rhn.redhat.com/errata/RHSA-2015-0999.html
- http://rhn.redhat.com/errata/RHSA-2015-1000.html
- http://rhn.redhat.com/errata/RHSA-2015-1001.html
- http://rhn.redhat.com/errata/RHSA-2015-1002.html
- http://rhn.redhat.com/errata/RHSA-2015-1003.html
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