kernel: int80 fork from 64-bit tasks mishandling
Published May 27, 2015
1.9
LOWCVSS 2.0
EPSS 0.41%
Description
arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.
Affected products
No data.
Configuration 1
- 7.0
- 8.0
Configuration 2
- ≤ 3.19.1
Configuration 3
- 12.04
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-504.30.3.el6
Fixed · RHSA-2015:1221
Red Hat Enterprise Linux 7
kernel-0:3.10.0-229.7.2.ael7b
Fixed · RHSA-2015:1137
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-229.7.2.rt56.141.6.el7_1
Fixed · RHSA-2015:1139
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-229.rt56.153.el6rt
Fixed · RHSA-2015:1138
Red Hat Enterprise Linux 5
kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-504.30.3.el6 | Fixed | RHSA-2015:1221 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-229.7.2.ael7b | Fixed | RHSA-2015:1137 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-229.7.2.rt56.141.6.el7_1 | Fixed | RHSA-2015:1139 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-229.rt56.153.el6rt | Fixed | RHSA-2015:1138 |
| Red Hat Enterprise Linux 5 | kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for the respective releases may address this issue. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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:M/Au:N/C:N/I:P/A:N
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.41% (0.00414) | 33.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00414) | 32.79th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00032) | 5.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (19)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-1137.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1138.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1221.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3237 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2 x_refsource_CONFIRMVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/04/02/1 mailing-listx_refsource_MLIST
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRM
- http://www.securitytracker.com/id/1032413 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2631-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2632-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-2830 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1208598 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-2830
- https://www.cve.org/CVERecord?id=CVE-2015-2830
Change history (0)
No recorded changes yet.