kernel: Integer overflow in ip6_find_1stfragopt() causes infinite loop
Published Jul 21, 2017
5.5
MEDIUMCVSS 3.0
EPSS 0.45%
Description
The ip6_find_1stfragopt function in net/ipv6/output_core.c in the Linux kernel through 4.12.3 allows local users to cause a denial of service (integer overflow and infinite loop) by leveraging the ability to open a raw socket.
Affected products
- Vendor n/a Product Linux kernel versions up to and including 4.12 Defaultn/a
- Version Linux kernel versions up to and including 4.12StatusaffectedConstraints-
- 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 versions up to and including 4.12 | n/a |
|
- ≤ 4.12.3
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-696.20.1.el6
Fixed · RHSA-2018:0169
Red Hat Enterprise Linux 7
kernel-0:3.10.0-693.5.2.el7
Fixed · RHSA-2017:2930
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-693.5.2.rt56.626.el7
Fixed · RHSA-2017:2931
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.5.2.rt56.592.el6rt
Fixed · RHSA-2017:2918
Red Hat Enterprise Linux 5
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel-alt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-696.20.1.el6 | Fixed | RHSA-2018:0169 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-693.5.2.el7 | Fixed | RHSA-2017:2930 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-693.5.2.rt56.626.el7 | Fixed | RHSA-2017:2931 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.5.2.rt56.592.el6rt | Fixed | RHSA-2017:2918 |
| Red Hat Enterprise Linux 5 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2. Future Linux kernel updates for the respective releases may address this issue. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and does not qualify for inclusion as part of the Red Hat Enterprise Linux 5 lifecycle. For more information on the lifecycle see 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.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.45% (0.00454) | 37.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.46% (0.00457) | 36.04th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00018) | 2.42th | 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 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.28% (0.01282) | 67.79th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.55% (0.01547) | 74.40th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.79% (0.01789) | 35.03th | v1 |
| Jan 6, 2022 | 1.79% (0.01789) | 34.33th | v1 |
| Sep 1, 2021 | 1.79% (0.01789) | 74.21th | v1 |
| Apr 14, 2021 | 1.79% (0.01789) | 0.00th | v1 |
References (16)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6399f1fae4ec29fab5ec76070435555e256ca3a6 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- http://www.debian.org/security/2017/dsa-3927 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2017/dsa-3945 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/99953 vdb-entryx_refsource_BID
- https://access.redhat.com/errata/RHSA-2017:2918 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:2930 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:2931 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2018:0169 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2017-7542 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1473649 Issue Tracking
- https://github.com/torvalds/linux/commit/6399f1fae4ec29fab5ec76070435555e256ca3a6 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2017-7542
- https://usn.ubuntu.com/3583-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3583-2/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-7542
Change history (0)
No recorded changes yet.