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TI-2023-01314 Aliases CVE-2023-1390GHSA-875q-9h9j-qhmh

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel…

Priority MEDIUM 47CWE-1050Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.05095 92nd percentileScored 2026-11-07
Fix Fixed Red Hat: 7 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Linux kernel (TIPC kernel module)Fixed in kernel 5.11-rc4—No fix listedCNA
  • Linux kernel (TIPC kernel module) Vendor— Affected Fixed in kernel 5.11-rc4 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.3 to before 4.9.253; 4.10 to before 4.14.217; 4.15 to before 4.19.170; 4.20 to before 5.4.92; 5.5 to before 5.10.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.11:rc1:*:*:*:*:*:*5.11 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.11:rc2:*:*:*:*:*:*5.11 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.11:rc3:*:*:*:*:*:*5.11 rc3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.3 to before 4.9.253; 4.10 to before 4.14.217; 4.15 to before 4.19.170; 4.20 to before 5.4.92; 5.5 to before 5.10.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.11:rc1:*:*:*:*:*:* Versions 5.11 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.11:rc2:*:*:*:*:*:* Versions 5.11 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.11:rc3:*:*:*:*:*:* Versions 5.11 rc3 Vulnerable ·Linux

Remediation

Red Hat 7 advisories

  • RHSA-2023:4146 Released 2023-07-18 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) kpatch-patch-4_18_0-193_100_1-1-2.el8_2, kpatch-patch-4_18_0-193_105_1-1-1.el8_2, kpatch-patch-4_18_0-193_95_1-1-4.el8_2 +1
  • RHSA-2023:4125 Released 2023-07-18 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.109.1.el8_2, kernel-4.18.0-193.109.1.el8_2, kernel-abi-whitelists-4.18.0-193.109.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) bpftool-4.18.0-193.109.1.el8_2, kernel-4.18.0-193.109.1.el8_2, kernel-abi-whitelists-4.18.0-193.109.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS TUS (v. 8.2) bpftool-4.18.0-193.109.1.el8_2, kernel-4.18.0-193.109.1.el8_2, kernel-abi-whitelists-4.18.0-193.109.1.el8_2 +14
  • RHSA-2023:4126 Released 2023-07-18 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time TUS (v. 8.2) kernel-rt-4.18.0-193.109.1.rt13.160.el8_2, kernel-rt-core-4.18.0-193.109.1.rt13.160.el8_2, kernel-rt-debug-4.18.0-193.109.1.rt13.160.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2) kernel-rt-4.18.0-193.109.1.rt13.160.el8_2, kernel-rt-core-4.18.0-193.109.1.rt13.160.el8_2, kernel-rt-debug-4.18.0-193.109.1.rt13.160.el8_2 +9
Show 4 more Red Hat advisories
  • RHSA-2023:3191 Released 2023-05-17 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) kpatch-patch-4_18_0-147_76_1-1-4.el8_1, kpatch-patch-4_18_0-147_77_1-1-4.el8_1, kpatch-patch-4_18_0-147_78_1-1-3.el8_1 +2
  • RHSA-2023:3190 Released 2023-05-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) bpftool-4.18.0-147.83.1.el8_1, kernel-4.18.0-147.83.1.el8_1, kernel-abi-whitelists-4.18.0-147.83.1.el8_1 +14
  • RHSA-2021:1739 Released 2021-05-18 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-305.rt7.72.el8, kernel-rt-core-4.18.0-305.rt7.72.el8, kernel-rt-debug-4.18.0-305.rt7.72.el8 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-305.rt7.72.el8, kernel-rt-core-4.18.0-305.rt7.72.el8, kernel-rt-debug-4.18.0-305.rt7.72.el8 +9
  • RHSA-2021:1578 Released 2021-05-18 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-305.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-305.el8, kernel-4.18.0-305.el8, kernel-abi-stablelists-4.18.0-305.el8 +19

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:1578
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2021:1578
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2023:4125
Red Hat Enterprise Linux BaseOS E4S (v. 8.1)Fixed RHSA-2023:3190, RHSA-2023:3191
Red Hat Enterprise Linux BaseOS E4S (v. 8.2)Fixed RHSA-2023:4125, RHSA-2023:4146
Red Hat Enterprise Linux BaseOS TUS (v. 8.2)Fixed RHSA-2023:4125
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2021:1739
Red Hat Enterprise Linux Real Time TUS (v. 8.2)Fixed RHSA-2023:4126
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2021:1739
Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2)Fixed RHSA-2023:4126
Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 9
  • Red Hat Virtualization 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-1390
  2. 2026-10-03 Alias added: GHSA-875q-9h9j-qhmh

References

Patch 1

Advisory 2

Other 1

  • 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
See all 15278 →

Sources

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