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TI-2017-07791 Aliases CVE-2017-10661GHSA-gg87-xrj2-3r8m

Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to…

Priority MEDIUM 46CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 23 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.

Why it matters now

EPSS 0.13484 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Partial Red Hat: 5 advisoriesRed Hat: 23 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 3.2.92; 3.3 to before 3.16.47; 3.17 to before 3.18.52; 3.19 to before 4.1.41; 4.2 to before 4.4.67; 4.5 to before 4.9.27; 4.10 to before 4.10.15VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.2.92; 3.3 to before 3.16.47; 3.17 to before 3.18.52; 3.19 to before 4.1.41; 4.2 to before 4.4.67; 4.5 to before 4.9.27; 4.10 to before 4.10.15 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Red Hat 5 advisories

  • RHSA-2020:0036 Released 2020-01-07 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) kernel-3.10.0-862.46.1.el7, kernel-abi-whitelists-3.10.0-862.46.1.el7, kernel-debug-3.10.0-862.46.1.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) kernel-tools-libs-devel-3.10.0-862.46.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.5) kernel-3.10.0-862.46.1.el7, kernel-abi-whitelists-3.10.0-862.46.1.el7, kernel-bootwrapper-3.10.0-862.46.1.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.5) kernel-debug-devel-3.10.0-862.46.1.el7, kernel-tools-libs-devel-3.10.0-862.46.1.el7
  • RHSA-2019:4058 Released 2019-12-03 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server AUS (v. 7.4) kernel-3.10.0-693.61.1.el7, kernel-abi-whitelists-3.10.0-693.61.1.el7, kernel-debug-3.10.0-693.61.1.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.4) kernel-3.10.0-693.61.1.el7, kernel-abi-whitelists-3.10.0-693.61.1.el7, kernel-bootwrapper-3.10.0-693.61.1.el7 +9
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.61.1.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.4) kernel-debug-devel-3.10.0-693.61.1.el7, kernel-tools-libs-devel-3.10.0-693.61.1.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.61.1.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.4) kernel-3.10.0-693.61.1.el7, kernel-abi-whitelists-3.10.0-693.61.1.el7, kernel-debug-3.10.0-693.61.1.el7 +8
  • RHSA-2019:4057 Released 2019-12-03 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.61.1.rt56.656.el6rt, kernel-rt-debug-1:3.10.0-693.61.1.rt56.656.el6rt, kernel-rt-debug-devel-1:3.10.0-693.61.1.rt56.656.el6rt +7
Show 2 more Red Hat advisories
  • RHSA-2018:3096 Released 2018-10-30 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-957.rt56.910.el7, kernel-rt-debug-3.10.0-957.rt56.910.el7, kernel-rt-debug-devel-3.10.0-957.rt56.910.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-957.rt56.910.el7, kernel-rt-debug-3.10.0-957.rt56.910.el7, kernel-rt-debug-devel-3.10.0-957.rt56.910.el7 +7
  • RHSA-2018:3083 Released 2018-10-30 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-957.el7, kernel-3.10.0-957.el7, kernel-abi-whitelists-3.10.0-957.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-957.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-957.el7, kernel-3.10.0-957.el7, kernel-abi-whitelists-3.10.0-957.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-957.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-957.el7, kernel-3.10.0-957.el7, kernel-abi-whitelists-3.10.0-957.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-957.el7, kernel-tools-libs-devel-3.10.0-957.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-957.el7, kernel-3.10.0-957.el7, kernel-abi-whitelists-3.10.0-957.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-957.el7
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-3.10.0-957.el7, kernel-abi-whitelists-3.10.0-957.el7, kernel-bootwrapper-3.10.0-957.el7 +10
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-3.10.0-957.el7, kernel-tools-libs-devel-3.10.0-957.el7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet
Red Hat Enterprise MRG 2AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux ComputeNode EUS (v. 7.5)Fixed RHSA-2020:0036
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5)Fixed RHSA-2020:0036
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux Server AUS (v. 7.4)Fixed RHSA-2019:4058
Red Hat Enterprise Linux Server E4S (v. 7.4)Fixed RHSA-2019:4058
Red Hat Enterprise Linux Server EUS (v. 7.5)Fixed RHSA-2020:0036
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux Server Optional AUS (v. 7.4)Fixed RHSA-2019:4058
Red Hat Enterprise Linux Server Optional E4S (v. 7.4)Fixed RHSA-2019:4058
Red Hat Enterprise Linux Server Optional EUS (v. 7.5)Fixed RHSA-2020:0036
Red Hat Enterprise Linux Server Optional TUS (v. 7.4)Fixed RHSA-2019:4058
Red Hat Enterprise Linux Server TUS (v. 7.4)Fixed RHSA-2019:4058
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:3083
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2018:3096
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2018:3096
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2019:4057
Not affected: 7 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux ComputeNode (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-10661
  2. 2026-10-03 Alias added: GHSA-gg87-xrj2-3r8m

References

Exploit 1

Patch 3

Advisory 7

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences