kernel: xen: Mishandling of uninitialised FIFO-based event channel control blocks (xsa107)
Published Jan 12, 2015
4.9
MEDIUMCVSS 2.0
EPSS 0.41%
Description
The evtchn_fifo_set_pending function in Xen 4.4.x allows local guest users to cause a denial of service (host crash) via vectors involving an uninitialized FIFO-based event channel control block when (1) binding or (2) moving an event to a different VCPU.
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.41% (0.00415) | 33.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00415) | 32.88th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00051) | 13.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00059) | 26.93th | v3 (v2023.03.01) |
| May 25, 2024 | 0.06% (0.00059) | 24.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
References (8)
- http://www.securityfocus.com/bid/69753 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1030829 vdb-entryx_refsource_SECTRACK
- http://xenbits.xen.org/xsa/advisory-107.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2014-6268 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1140280 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95837 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2014-6268
- https://www.cve.org/CVERecord?id=CVE-2014-6268
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/69753 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1030829 | vdb-entryx_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-107.html | x_refsource_CONFIRMVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-6268 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1140280 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/95837 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-6268 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-6268 |
Change history (0)
No recorded changes yet.