CVE-2015-3214
Description
The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbitrary code on the host OS by triggering use of an invalid index.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
QEMU - Programmable Interrupt Timer Controller Heap Overflow
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Red Hat Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 7.0 | Affected | — |
Debian Mixed 7 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
| 8.0 | Affected | — |
| 7.0 | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| qemu | qemu | {"endIncluding":"2.3.0"} | |
| redhat | openstack | 5.0 | |
| redhat | openstack | 6.0 | |
| redhat | virtualization | 3.0 | |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee73f656a604d5aa9df86a97102e4e462dd79924
- http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33
- http://rhn.redhat.com/errata/RHSA-2015-1507.html
- http://rhn.redhat.com/errata/RHSA-2015-1508.html
- http://rhn.redhat.com/errata/RHSA-2015-1512.html
- http://www.debian.org/security/2015/dsa-3348
- http://www.openwall.com/lists/oss-security/2015/06/25/7
- http://www.securityfocus.com/bid/75273
- http://www.securitytracker.com/id/1032598
- https://bugzilla.redhat.com/show_bug.cgi?id=1229640
- https://github.com/torvalds/linux/commit/ee73f656a604d5aa9df86a97102e4e462dd79924
- https://security.gentoo.org/glsa/201510-02
- https://support.lenovo.com/product_security/qemu
- https://support.lenovo.com/us/en/product_security/qemu
- https://www.arista.com/en/support/advisories-notices/security-advisories/1180-security-advisory-13
- https://www.exploit-db.com/exploits/37990/
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg304138.html
- https://security-tracker.debian.org/tracker/CVE-2015-3214
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.