CVE-2015-3214
Public exploit available. Not confirmed exploited in the wild yet. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
1 source with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
1.6% chance of exploitation activity in the next 30 days, which ranks it in the 75th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
A public exploit existed 61 days before the patch.
- OpenVAS check added
- Patch availablerecord updated
- Public exploit / PoCsource: exploit-db
- Publishedweakness classified, att&ck mapped
Affected products
- openstackOperating Systems / linux-distro
- virtualizationOperating Systems / linux-distro
- enterprise linux compute node eusOperating Systems / linux-distro
- enterprise linux for power big endianOperating Systems / linux-distro
- enterprise linux for power big endian eusOperating Systems / linux-distro
- enterprise linux for scientific computingOperating Systems / linux-distro
- enterprise linux workstationOperating Systems / linux-distro
- enterprise linux server from rhuiOperating Systems / linux-distro
And 7 more affected products. See all after sign-in
Technical detail
CVSS 2.0 vector
Open in the CVSS calculatorAV:L/AC:M/Au:N/C:C/I:C/A:C
Scored 6.9 by NVD.
How it is reached
- Access Vector LocalRequires local access
- Access Complexity MediumSome conditions must be met
- Authentication NoneNo authentication required
Impact if exploited
- Confidentiality CompleteAll information is disclosed
- Integrity CompleteAll data can be modified
- Availability CompleteTotal shutdown of the affected resource
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationhigh confidence
- Privilege EscalationT1068Exploitation for Privilege Escalationhigh confidence
Sources
References in the record
- github.com/torvalds/linux/commit/ee73f656a604d5aa9df86a97102e4e462dd79924
- bugzilla.redhat.com/show_bug.cgi?id=1229640
- openwall.com/lists/oss-security/2015/06/25/7
And 14 more references. See all after sign-in
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