kernel: net: Unsafe second checksum calculation in udp.c
Published Apr 4, 2017
9.8
CRITICALCVSS 3.1
EPSS 12.82%
Description
udp.c in the Linux kernel before 4.5 allows remote attackers to execute arbitrary code via UDP traffic that triggers an unsafe second checksum calculation during execution of a recv system call with the MSG_PEEK flag.
Affected products
No data.
Configuration 1
- ≥ 3.2 · < 3.2.76
- ≥ 3.3 · < 3.4.113
- ≥ 3.5 · < 3.10.103
- ≥ 3.11 · < 3.12.53
- ≥ 3.13 · < 3.14.77
- ≥ 3.15 · < 3.16.35
- ≥ 3.17 · < 3.18.45
- ≥ 3.19 · < 4.1.40
- ≥ 4.2 · < 4.4.21
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 Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
realtime-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 Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code that introduced the flaw is not present in these products. This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7, Red Hat Enterprise MRG 2, and realtime kernels as these contain the fixed commit.
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.82% (0.12824) | 96.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.79% (0.12791) | 95.76th | v5 (v2026.06.15) |
| Nov 25, 2025 | 1.24% (0.01242) | 78.65th | v4 (v2025.03.14) |
| Nov 4, 2025 | 3.19% (0.03191) | 86.47th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.96% (0.01959) | 81.86th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.90% (0.07895) | 86.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.96% (0.01959) | 82.29th | v4 (v2025.03.14) |
| Dec 17, 2024 | 1.88% (0.01878) | 88.14th | v3 (v2023.03.01) |
| Aug 11, 2024 | 3.47% (0.03472) | 91.64th | v3 (v2023.03.01) |
| Mar 15, 2023 | 4.84% (0.04837) | 91.47th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.91% (0.04912) | 91.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.91% (0.06908) | 92.19th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.91% (0.06908) | 91.45th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.91% (0.06908) | 79.67th | v2 (v2022.01.01) |
References (12)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197c949e7798fbf28cfadc69d9ca0c2abbf93191 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- http://source.android.com/security/bulletin/2017-04-01.html x_refsource_CONFIRMPatchThird Party Advisory
- http://www.securityfocus.com/bid/97397 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038201 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-10229 Vendor Advisory
- https://access.redhat.com/solutions/3001781
- https://bugzilla.redhat.com/show_bug.cgi?id=1439740 Issue Tracking
- https://github.com/torvalds/linux/commit/197c949e7798fbf28cfadc69d9ca0c2abbf93191 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-10229
- https://security.netapp.com/advisory/ntap-20250103-0008/
- https://security.paloaltonetworks.com/CVE-2016-10229 x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-10229
Change history (0)
No recorded changes yet.