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TI-2023-00559 Aliases CVE-2023-0590GHSA-rr33-cw2h-vrch

Use after free in Kernel

Priority LOW 21CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 17 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

A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 ("net: sched: fix race condition in qdisc_graft()") not applied yet, then kernel could be affected.

Why it matters now

EPSS 0.00227 13th percentileScored 2026-11-07
Fix Partial Red Hat: 7 advisoriesRed Hat: 17 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
—KernelLinux kernel 6.1-rc2—No fix listedCNA
  • Kernel Vendor— Affected Linux kernel 6.1-rc2 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 6.1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*6.1 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 6.1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* Versions 6.1 rc1 Vulnerable ·Linux

Remediation

Red Hat 7 advisories

  • RHSA-2023:7382 Released 2023-11-21 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.80.1.el9_0
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.80.1.el9_0, kernel-debug-devel-matched-5.14.0-70.80.1.el9_0, kernel-devel-5.14.0-70.80.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.80.1.el9_0, kernel-5.14.0-70.80.1.el9_0, kernel-abi-stablelists-5.14.0-70.80.1.el9_0 +14
  • RHSA-2023:7389 Released 2023-11-21 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt-5.14.0-70.80.1.rt21.151.el9_0, kernel-rt-core-5.14.0-70.80.1.rt21.151.el9_0, kernel-rt-debug-5.14.0-70.80.1.rt21.151.el9_0 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt-5.14.0-70.80.1.rt21.151.el9_0, kernel-rt-core-5.14.0-70.80.1.rt21.151.el9_0, kernel-rt-debug-5.14.0-70.80.1.rt21.151.el9_0 +9
  • RHSA-2023:7077 Released 2023-11-14 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-513.5.1.el8_9
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-513.5.1.el8_9, kernel-4.18.0-513.5.1.el8_9, kernel-abi-stablelists-4.18.0-513.5.1.el8_9 +19
Show 4 more Red Hat advisories
  • RHSA-2023:6901 Released 2023-11-14 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-4.18.0-513.5.1.rt7.307.el8_9 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-4.18.0-513.5.1.rt7.307.el8_9 +9
  • RHSA-2023:5627 Released 2023-10-10 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-tools-libs-devel-4.18.0-372.75.1.el8_6
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) bpftool-4.18.0-372.75.1.el8_6, kernel-4.18.0-372.75.1.el8_6, kernel-abi-stablelists-4.18.0-372.75.1.el8_6 +19
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.75.1.el8_6, perf-4.18.0-372.75.1.el8_6
  • RHSA-2023:2458 Released 2023-05-09 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.11.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.11.1.el9_2, kernel-64k-devel-5.14.0-284.11.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.11.1.el9_2, kernel-5.14.0-284.11.1.el9_2, kernel-64k-5.14.0-284.11.1.el9_2 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.11.1.el9_2
  • RHSA-2023:2148 Released 2023-05-09 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-284.11.1.rt14.296.el9_2, kernel-rt-core-5.14.0-284.11.1.rt14.296.el9_2, kernel-rt-debug-5.14.0-284.11.1.rt14.296.el9_2 +11
    • Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-284.11.1.rt14.296.el9_2, kernel-rt-core-5.14.0-284.11.1.rt14.296.el9_2, kernel-rt-debug-5.14.0-284.11.1.rt14.296.el9_2 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2023:7077
Red Hat CodeReady Linux Builder EUS (v.8.6)Fixed RHSA-2023:5627
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2023:7382
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:7382
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2023:7077
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2023:5627
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2023:7382
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux NFV (v. 9)Fixed RHSA-2023:2148
Red Hat Enterprise Linux RT (v. 9)Fixed RHSA-2023:2148
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2023:6901
Red Hat Enterprise Linux Real Time EUS (v.9.0)Fixed RHSA-2023:7389
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2023:6901
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)Fixed RHSA-2023:7389
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2023:5627

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-0590
  2. 2026-10-03 Alias added: GHSA-rr33-cw2h-vrch

References

Other 2

  • 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