kernel: espfix64: local DoS via do_double_fault() due to improper handling of faults associated with SS segment register
Published Nov 30, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.38%
Description
The do_double_fault function in arch/x86/kernel/traps.c in the Linux kernel through 3.17.4 does not properly handle faults associated with the Stack Segment (SS) segment register, which allows local users to cause a denial of service (panic) via a modify_ldt system call, as demonstrated by sigreturn_32 in the linux-clock-tests test suite.
Affected products
No data.
- ≤ 3.17.3
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.18
- 3.0.19
- 3.0.20
- 3.0.21
- 3.0.22
- 3.0.23
- 3.0.24
- 3.0.25
- 3.0.26
- 3.0.27
- 3.0.28
- 3.0.29
- 3.0.30
- 3.0.31
- 3.0.32
- 3.0.33
- 3.0.34
- 3.0.35
- 3.0.36
- 3.0.37
- 3.0.38
- 3.0.39
- 3.0.40
- 3.0.41
- 3.0.42
- 3.0.43
- 3.0.44
- 3.0.45
- 3.0.46
- 3.0.47
- 3.0.48
- 3.0.49
- 3.0.50
- 3.0.51
- 3.0.52
- 3.0.53
- 3.0.54
- 3.0.55
- 3.0.56
- 3.0.57
- 3.0.58
- 3.0.59
- 3.0.60
- 3.0.61
- 3.0.62
- 3.0.63
- 3.0.64
- 3.0.65
- 3.0.66
- 3.0.67
- 3.0.68
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.1.10
- 3.2
- 3.2
- 3.2
- 3.2
- 3.10
- 3.10.0
- 3.10.1
- 3.10.1
- 3.10.2
- 3.10.2
- 3.10.3
- 3.10.3
- 3.10.4
- 3.10.4
- 3.10.5
- 3.10.5
- 3.10.6
- 3.10.6
- 3.10.7
- 3.10.7
- 3.10.8
- 3.10.8
- 3.10.9
- 3.10.9
- 3.10.10
- 3.10.11
- 3.10.12
- 3.10.13
- 3.10.14
- 3.10.15
- 3.10.16
- 3.10.17
- 3.10.18
- 3.10.19
- 3.10.20
- 3.10.21
- 3.10.22
- 3.10.23
- 3.10.24
- 3.10.25
- 3.10.26
- 3.10.27
- 3.10.28
- 3.10.29
- 3.11
- 3.11.1
- 3.11.2
- 3.11.3
- 3.11.4
- 3.11.5
- 3.11.6
- 3.11.7
- 3.11.8
- 3.11.9
- 3.11.10
- 3.12
- 3.12.1
- 3.12.2
- 3.12.3
- 3.12.4
- 3.12.5
- 3.12.6
- 3.12.7
- 3.12.8
- 3.12.9
- 3.12.10
- 3.12.11
- 3.12.12
- 3.12.13
- 3.12.14
- 3.12.15
- 3.12.16
- 3.12.17
- 3.13
- 3.13.1
- 3.13.2
- 3.13.3
- 3.13.4
- 3.13.5
- 3.13.6
- 3.13.7
- 3.13.8
- 3.13.9
- 3.13.10
- 3.13.11
- 3.14
- 3.14
- 3.14
- 3.14
- 3.14
- 3.14
- 3.14
- 3.14
- 3.14
- 3.14.1
- 3.14.2
- 3.14.3
- 3.14.4
- 3.14.5
- 3.15
- 3.15.1
- 3.15.2
- 3.15.3
- 3.15.4
- 3.15.5
- 3.15.6
- 3.15.7
- 3.15.8
- 3.16.0
- 3.16.1
- 3.17
- 3.17.1
- 3.17.2
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise MRG 2
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise Linux MRG 2 because they do not have support for the x86-64 version of ESPfix functionality.
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 1, 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.38% (0.00376) | 29.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.38% (0.00376) | 29.13th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00044) | 10.60th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
References (12)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6f442be2fb22be02cafa606f1769fa1e6f894441 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/62336 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2014/dsa-3093 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2014/11/26/5 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2014-9090 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1170691 Issue Tracking
- https://github.com/torvalds/linux/commit/6f442be2fb22be02cafa606f1769fa1e6f894441 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-9090
- https://www.cve.org/CVERecord?id=CVE-2014-9090
Change history (0)
No recorded changes yet.