kernel: Use-after-free in the recvmmsg exit path
Published Oct 10, 2016
9.8
CRITICALCVSS 3.1
EPSS 23.56%
Description
Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel before 4.5.2 allows remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing.
Affected products
No data.
Configuration 1
- 7.0
Configuration 2
- ≥ 2.6.33 · < 3.2.80
- ≥ 3.3 · < 3.4.113
- ≥ 3.5 · < 3.10.102
- ≥ 3.11 · < 3.12.59
- ≥ 3.13 · < 3.14.67
- ≥ 3.15 · < 3.16.35
- ≥ 3.17 · < 3.18.37
- ≥ 3.19 · < 4.1.28
- ≥ 4.2.0 · < 4.4.8
- ≥ 4.5.0 · < 4.5.2
Configuration 3
- 16.04
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-417.el5
Fixed · RHSA-2016:2962
Red Hat Enterprise Linux 6
kernel-0:2.6.32-642.13.1.el6
Fixed · RHSA-2017:0036
Red Hat Enterprise Linux 6.2 Advanced Update Support
kernel-0:2.6.32-220.69.1.el6
Fixed · RHSA-2017:0215
Red Hat Enterprise Linux 6.4 Advanced Update Support
kernel-0:2.6.32-358.76.1.el6
Fixed · RHSA-2017:0196
Red Hat Enterprise Linux 6.5 Advanced Update Support
kernel-0:2.6.32-431.77.1.el6
Fixed · RHSA-2017:0065
Red Hat Enterprise Linux 6.5 Telco Extended Update Support
kernel-0:2.6.32-431.77.1.el6
Fixed · RHSA-2017:0065
Red Hat Enterprise Linux 6.6 Advanced Update Support
kernel-0:2.6.32-504.56.1.el6
Fixed · RHSA-2017:0216
Red Hat Enterprise Linux 6.6 Telco Extended Update Support
kernel-0:2.6.32-504.56.1.el6
Fixed · RHSA-2017:0216
Red Hat Enterprise Linux 6.7 Extended Update Support
kernel-0:2.6.32-573.38.1.el6
Fixed · RHSA-2017:0031
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.6.1.el7
Fixed · RHSA-2017:0086
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-514.6.1.rt56.429.el7
Fixed · RHSA-2017:0091
Red Hat Enterprise Linux 7.1 Extended Update Support
kernel-0:3.10.0-229.48.1.ael7b
Fixed · RHSA-2017:0270
Red Hat Enterprise Linux 7.2 Extended Update Support
kernel-0:3.10.0-327.46.1.el7
Fixed · RHSA-2017:0217
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-514.rt56.210.el6rt
Fixed · RHSA-2017:0113
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-417.el5 | Fixed | RHSA-2016:2962 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-642.13.1.el6 | Fixed | RHSA-2017:0036 |
| Red Hat Enterprise Linux 6.2 Advanced Update Support | kernel-0:2.6.32-220.69.1.el6 | Fixed | RHSA-2017:0215 |
| Red Hat Enterprise Linux 6.4 Advanced Update Support | kernel-0:2.6.32-358.76.1.el6 | Fixed | RHSA-2017:0196 |
| Red Hat Enterprise Linux 6.5 Advanced Update Support | kernel-0:2.6.32-431.77.1.el6 | Fixed | RHSA-2017:0065 |
| Red Hat Enterprise Linux 6.5 Telco Extended Update Support | kernel-0:2.6.32-431.77.1.el6 | Fixed | RHSA-2017:0065 |
| Red Hat Enterprise Linux 6.6 Advanced Update Support | kernel-0:2.6.32-504.56.1.el6 | Fixed | RHSA-2017:0216 |
| Red Hat Enterprise Linux 6.6 Telco Extended Update Support | kernel-0:2.6.32-504.56.1.el6 | Fixed | RHSA-2017:0216 |
| Red Hat Enterprise Linux 6.7 Extended Update Support | kernel-0:2.6.32-573.38.1.el6 | Fixed | RHSA-2017:0031 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.6.1.el7 | Fixed | RHSA-2017:0086 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-514.6.1.rt56.429.el7 | Fixed | RHSA-2017:0091 |
| Red Hat Enterprise Linux 7.1 Extended Update Support | kernel-0:3.10.0-229.48.1.ael7b | Fixed | RHSA-2017:0270 |
| Red Hat Enterprise Linux 7.2 Extended Update Support | kernel-0:3.10.0-327.46.1.el7 | Fixed | RHSA-2017:0217 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-514.rt56.210.el6rt | Fixed | RHSA-2017:0113 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 5, 6, 7, MRG-2 and realtime and may be addressed in a future update.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 23.56% (0.23558) | 97.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 24.30% (0.24299) | 97.57th | v5 (v2026.06.15) |
| Jun 5, 2026 | 14.75% (0.14755) | 94.63th | v4 (v2025.03.14) |
| May 30, 2026 | 13.69% (0.13687) | 94.38th | v4 (v2025.03.14) |
| Mar 30, 2026 | 10.56% (0.10558) | 93.24th | v4 (v2025.03.14) |
| Jan 20, 2026 | 8.38% (0.08385) | 92.04th | v4 (v2025.03.14) |
| Aug 16, 2025 | 4.79% (0.04788) | 89.05th | v4 (v2025.03.14) |
| Mar 30, 2025 | 12.78% (0.12777) | 93.39th | v4 (v2025.03.14) |
| Mar 29, 2025 | 18.32% (0.18322) | 92.12th | v4 (v2025.03.14) |
| Mar 28, 2025 | 12.78% (0.12777) | 93.39th | v4 (v2025.03.14) |
| Mar 27, 2025 | 18.32% (0.18322) | 94.36th | v4 (v2025.03.14) |
| Mar 20, 2025 | 12.78% (0.12777) | 93.47th | v4 (v2025.03.14) |
| Mar 19, 2025 | 18.32% (0.18322) | 94.47th | v4 (v2025.03.14) |
| Mar 17, 2025 | 12.78% (0.12777) | 93.45th | v4 (v2025.03.14) |
| Dec 17, 2024 | 7.69% (0.07687) | 94.16th | v3 (v2023.03.01) |
| Dec 12, 2024 | 3.90% (0.03897) | 92.31th | v3 (v2023.03.01) |
| May 8, 2023 | 3.81% (0.03811) | 90.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.94% (0.03935) | 90.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.94% (0.10938) | 94.73th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.94% (0.10938) | 94.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.94% (0.10938) | 88.37th | v2 (v2022.01.01) |
References (24)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b88a68f26a75e4fded796f1a49c40f82234b7d x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2962.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0031.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0036.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0065.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0086.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0091.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0113.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0196.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0215.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0216.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0217.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0270.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://source.android.com/security/bulletin/2016-10-01.html x_refsource_CONFIRMVendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2 x_refsource_CONFIRMRelease NotesVendor Advisory
- http://www.securityfocus.com/bid/93304 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-7117 Vendor Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=1003077 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1382268 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/34b88a68f26a75e4fded796f1a49c40f82234b7d x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-7117
- https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7117.html x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2016-7117 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-7117
Change history (0)
No recorded changes yet.