kernel: Use-after-free vulnerability in DCCP socket
Published Dec 5, 2017
7.8
HIGHCVSS 3.1
EPSS 1.34%
Description
The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state.
Affected products
- Vendor n/a Product Linux kernel through 4.14.3 Defaultn/a
- Version Linux kernel through 4.14.3StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Linux kernel through 4.14.3 | n/a |
|
- ≥ 2.6.14 · < 3.2.97
- ≥ 3.3 · < 3.16.52
- ≥ 3.17 · < 3.18.95
- ≥ 3.19 · < 4.1.50
- ≥ 4.2 · < 4.4.116
- ≥ 4.5 · < 4.9.82
- ≥ 4.10 · < 4.14.20
No data.
Red Hat Enterprise Linux 5 Extended Lifecycle Support
kernel-0:2.6.18-436.el5
Fixed · RHSA-2018:3822
Red Hat Enterprise Linux 6
kernel-0:2.6.32-696.28.1.el6
Fixed · RHSA-2018:1319
Red Hat Enterprise Linux 7
kernel-0:3.10.0-862.el7
Fixed · RHSA-2018:1062
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-862.rt56.804.el7
Fixed · RHSA-2018:0676
Red Hat Enterprise Linux 7.2 Advanced Update Support
kernel-0:3.10.0-327.66.1.el7
Fixed · RHSA-2018:1216
Red Hat Enterprise Linux 7.2 Telco Extended Update Support
kernel-0:3.10.0-327.66.1.el7
Fixed · RHSA-2018:1216
Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions
kernel-0:3.10.0-327.66.1.el7
Fixed · RHSA-2018:1216
Red Hat Enterprise Linux 7.3 Extended Update Support
kernel-0:3.10.0-514.44.1.el7
Fixed · RHSA-2018:0399
Red Hat Enterprise Linux 7.4 Extended Update Support
kernel-0:3.10.0-693.25.2.el7
Fixed · RHSA-2018:1130
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.25.2.rt56.612.el6rt
Fixed · RHSA-2018:1170
Red Hat Enterprise Linux 7
kernel-alt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 Extended Lifecycle Support | kernel-0:2.6.18-436.el5 | Fixed | RHSA-2018:3822 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-696.28.1.el6 | Fixed | RHSA-2018:1319 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-862.el7 | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-862.rt56.804.el7 | Fixed | RHSA-2018:0676 |
| Red Hat Enterprise Linux 7.2 Advanced Update Support | kernel-0:3.10.0-327.66.1.el7 | Fixed | RHSA-2018:1216 |
| Red Hat Enterprise Linux 7.2 Telco Extended Update Support | kernel-0:3.10.0-327.66.1.el7 | Fixed | RHSA-2018:1216 |
| Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions | kernel-0:3.10.0-327.66.1.el7 | Fixed | RHSA-2018:1216 |
| Red Hat Enterprise Linux 7.3 Extended Update Support | kernel-0:3.10.0-514.44.1.el7 | Fixed | RHSA-2018:0399 |
| Red Hat Enterprise Linux 7.4 Extended Update Support | kernel-0:3.10.0-693.25.2.el7 | Fixed | RHSA-2018:1130 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.25.2.rt56.612.el6rt | Fixed | RHSA-2018:1170 |
| Red Hat Enterprise Linux 7 | kernel-alt | Not 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, Red Hat Enterprise MRG 2 and real-time kernels. Future updates for the respective releases may address this issue. This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 for ARM and Red Hat Enterprise Linux 7 for Power LE.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.34% (0.01344) | 70.36th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.35% (0.01355) | 67.88th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.69% (0.00691) | 70.12th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 0.34th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.04% (0.00042) | 0.47th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.53% (0.03534) | 84.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.53% (0.03534) | 83.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.53% (0.03534) | 66.49th | v2 (v2022.01.01) |
| Feb 3, 2022 | 13.64% (0.13636) | 89.11th | v1 |
| Jan 6, 2022 | 13.64% (0.13636) | 88.98th | v1 |
| Sep 1, 2021 | 13.64% (0.13636) | 96.04th | v1 |
| Apr 14, 2021 | 13.64% (0.13636) | 0.00th | v1 |
References (28)
- http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.openwall.net/netdev/2017/12/04/224 x_refsource_MISCThird Party Advisory
- http://www.openwall.com/lists/oss-security/2017/12/05/1 x_refsource_MISCMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/102056 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:0399 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0676 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1062 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1130 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1170 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1216 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1319 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3822 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-8824 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1519591 Issue Tracking
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 x_refsource_CONFIRMThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-8824
- https://usn.ubuntu.com/3581-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3581-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3581-3/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3582-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3582-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3583-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3583-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-8824
- https://www.debian.org/security/2017/dsa-4073 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.debian.org/security/2018/dsa-4082 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.exploit-db.com/exploits/43234/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html | vendor-advisoryx_refsource_SUSEThird Party Advisory | |
| http://lists.openwall.net/netdev/2017/12/04/224 | x_refsource_MISCThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2017/12/05/1 | x_refsource_MISCMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/102056 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2018:0399 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:0676 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:1062 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:1130 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:1170 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:1216 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:1319 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:3822 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-8824 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1519591 | Issue Tracking | |
| https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 | x_refsource_CONFIRMThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html | mailing-listx_refsource_MLISTThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-8824 | ||
| https://usn.ubuntu.com/3581-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3581-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3581-3/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3582-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3582-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3583-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3583-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-8824 | ||
| https://www.debian.org/security/2017/dsa-4073 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.debian.org/security/2018/dsa-4082 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.exploit-db.com/exploits/43234/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.