CVE-2015-3214
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…
- 6.9MediumCVSS base score
- 1.6%Exploitation in 30 daysEPSS · top 24% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits2
Exploit-DB1 entry
- QEMU - Programmable Interrupt Timer Controller Heap Overflow (Exploit-DB entry) (opens in a new tab)
EDB-ID 37990dos, multiplepublished 27 Aug 2015Verified
References tagged exploit1 reference
- 37990 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 5 months later
· 5 months later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.
Affected products
n/a
- affected n/a
References
17
- https://support.lenovo.com/product_security/qemu (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1229640 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.lenovo.com/us/en/product_security/qemu (opens in a new tab)x_refsource_CONFIRMx_transferred
- 37990 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- GLSA-201510-02 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://github.com/torvalds/linux/commit/ee73f656a604d5aa9df86a97102e4e462dd79924 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3348 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2015:1508 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2015:1507 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.33 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee73f656a604d5aa9df86a97102e4e462dd79924 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2015:1512 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 1032598 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 75273 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20150625 Re: CVE request -- Linux kernel - kvm: x86: out-of-bounds memory access in pit_ioport_read function (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [qemu-devel] 20150617 Re: [PATCH] i8254: fix out-of-bounds memory access in pit_ioport_read() (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.arista.com/en/support/advisories-notices/security-advisories/1180-security-advisory-13 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-3277 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-3214)Record last updated .