net/packet/af_packet.c in the Linux kernel before 4.13.6 allows local users to gain…
Priority LOW 36CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 11 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
net/packet/af_packet.c in the Linux kernel before 4.13.6 allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free, a different vulnerability than CVE-2017-6346.
Why it matters now
EPSS 0.00962 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 11 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 3 advisories
- RHSA-2018:0181 Released 2018-01-25 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.17.1.rt56.604.el6rt, kernel-rt-debug-1:3.10.0-693.17.1.rt56.604.el6rt, kernel-rt-debug-devel-1:3.10.0-693.17.1.rt56.604.el6rt +7
- RHSA-2018:0152 Released 2018-01-25 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-693.17.1.rt56.636.el7, kernel-rt-debug-3.10.0-693.17.1.rt56.636.el7, kernel-rt-debug-devel-3.10.0-693.17.1.rt56.636.el7 +4
- Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-693.17.1.rt56.636.el7, kernel-rt-debug-3.10.0-693.17.1.rt56.636.el7, kernel-rt-debug-devel-3.10.0-693.17.1.rt56.636.el7 +7
- RHSA-2018:0151 Released 2018-01-25 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-693.17.1.el7, kernel-abi-whitelists-3.10.0-693.17.1.el7, kernel-debug-3.10.0-693.17.1.el7 +8
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.17.1.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-693.17.1.el7, kernel-abi-whitelists-3.10.0-693.17.1.el7, kernel-debug-3.10.0-693.17.1.el7 +8
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.17.1.el7
- Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-693.17.1.el7, kernel-abi-whitelists-3.10.0-693.17.1.el7, kernel-bootwrapper-3.10.0-693.17.1.el7 +11
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-693.17.1.el7, kernel-tools-libs-devel-3.10.0-693.17.1.el7
- Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-693.17.1.el7, kernel-abi-whitelists-3.10.0-693.17.1.el7, kernel-debug-3.10.0-693.17.1.el7 +8
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-693.17.1.el7
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux Realtime (v. 7) | Fixed | RHSA-2018:0152 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2018:0151 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) | Fixed | RHSA-2018:0152 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2018:0181 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2017-15649
- 2026-10-03 Alias added: GHSA-wjx2-qc46-g62h
References
Patch 2
Advisory 9
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=008ba2a13f2d04c947adc536d19debb8fe66f110
- https://blogs.securiteam.com/index.php/archives/3484
- RHSA-2018:0181
- http://patchwork.ozlabs.org/patch/813945/
- USN-3754-1
- RHSA-2018:0152
- http://patchwork.ozlabs.org/patch/818726/
- RHSA-2018:0151
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4971613c1639d8e5f102c4e797c3bf8f83a5a69e
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2017-15649 · CVE Program
- CVE-2017-15649 · NVD
- FIRST EPSS
- GHSA-wjx2-qc46-g62h · GitHub Advisory Database · CC BY 4.0
- CVE-2017-15649 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences