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TI-2023-19793 Aliases CVE-2023-38409GHSA-jrp6-94m7-j7gw

An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the…

Priority LOW 24CWE-362Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 43 fixed, 1 without a fix

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

Summary

An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_display arrays can be desynchronized in fbcon_mode_deleted (the con2fb_map points at the old fb_info).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00191 8th percentileScored 2026-11-07
Fix Partial Red Hat: 15 advisoriesRed Hat: 43 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 6.2.12VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 6.2.12 Vulnerable ·Linux

Remediation

Red Hat 15 advisories

  • RHSA-2024:2950 Released 2024-05-22 · Red Hat rating Moderate
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.rt7.342.el8_10, kernel-rt-core-4.18.0-553.rt7.342.el8_10, kernel-rt-debug-4.18.0-553.rt7.342.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.rt7.342.el8_10, kernel-rt-core-4.18.0-553.rt7.342.el8_10, kernel-rt-debug-4.18.0-553.rt7.342.el8_10 +7
  • RHSA-2024:3138 Released 2024-05-22 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.el8_10, kernel-4.18.0-553.el8_10, kernel-abi-stablelists-4.18.0-553.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.el8_10
  • RHSA-2024:1332 Released 2024-03-14 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-debug-3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-debug-devel-3.10.0-1160.114.2.rt56.1266.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-debug-3.10.0-1160.114.2.rt56.1266.el7, kernel-rt-debug-devel-3.10.0-1160.114.2.rt56.1266.el7 +7
Show 12 more Red Hat advisories
  • RHSA-2024:1306 Released 2024-03-13 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt-5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-core-5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-debug-5.14.0-70.93.1.rt21.165.el9_0 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt-5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-core-5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-debug-5.14.0-70.93.1.rt21.165.el9_0 +9
  • RHSA-2024:1269 Released 2024-03-12 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time TUS (v. 8.2) kernel-rt-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-core-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-4.18.0-193.128.1.rt13.179.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2) kernel-rt-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-core-4.18.0-193.128.1.rt13.179.el8_2, kernel-rt-debug-4.18.0-193.128.1.rt13.179.el8_2 +9
  • RHSA-2024:1268 Released 2024-03-12 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.128.1.el8_2, kernel-4.18.0-193.128.1.el8_2, kernel-abi-whitelists-4.18.0-193.128.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) bpftool-4.18.0-193.128.1.el8_2, kernel-4.18.0-193.128.1.el8_2, kernel-abi-whitelists-4.18.0-193.128.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS TUS (v. 8.2) bpftool-4.18.0-193.128.1.el8_2, kernel-4.18.0-193.128.1.el8_2, kernel-abi-whitelists-4.18.0-193.128.1.el8_2 +14
  • RHSA-2024:1249 Released 2024-03-12 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.114.2.el7, kernel-3.10.0-1160.114.2.el7, kernel-abi-whitelists-3.10.0-1160.114.2.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.114.2.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.114.2.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.114.2.el7, kernel-3.10.0-1160.114.2.el7, kernel-abi-whitelists-3.10.0-1160.114.2.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.114.2.el7, kernel-tools-libs-devel-3.10.0-1160.114.2.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.114.2.el7, kernel-3.10.0-1160.114.2.el7, kernel-abi-whitelists-3.10.0-1160.114.2.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.114.2.el7
  • RHSA-2024:1250 Released 2024-03-12 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.93.2.el9_0
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.93.2.el9_0, kernel-debug-devel-matched-5.14.0-70.93.2.el9_0, kernel-devel-5.14.0-70.93.2.el9_0 +5
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.93.2.el9_0, kernel-5.14.0-70.93.2.el9_0, kernel-abi-stablelists-5.14.0-70.93.2.el9_0 +14
  • RHSA-2024:0562 Released 2024-01-30 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.120.1.el8_4, kernel-4.18.0-305.120.1.el8_4, kernel-abi-stablelists-4.18.0-305.120.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) bpftool-4.18.0-305.120.1.el8_4, kernel-4.18.0-305.120.1.el8_4, kernel-abi-stablelists-4.18.0-305.120.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.4) bpftool-4.18.0-305.120.1.el8_4, kernel-4.18.0-305.120.1.el8_4, kernel-abi-stablelists-4.18.0-305.120.1.el8_4 +14
  • RHSA-2024:0563 Released 2024-01-30 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV TUS (v.8.4) kernel-rt-4.18.0-305.120.1.rt7.196.el8_4, kernel-rt-core-4.18.0-305.120.1.rt7.196.el8_4, kernel-rt-debug-4.18.0-305.120.1.rt7.196.el8_4 +9
    • Red Hat Enterprise Linux RT TUS (v.8.4) kernel-rt-4.18.0-305.120.1.rt7.196.el8_4, kernel-rt-core-4.18.0-305.120.1.rt7.196.el8_4, kernel-rt-debug-4.18.0-305.120.1.rt7.196.el8_4 +7
  • RHSA-2024:0461 Released 2024-01-25 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-362.18.1.el9_3, libperf-5.14.0-362.18.1.el9_3
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-362.18.1.el9_3, kernel-64k-debug-devel-matched-5.14.0-362.18.1.el9_3, kernel-64k-devel-5.14.0-362.18.1.el9_3 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.2.0-362.18.1.el9_3, kernel-5.14.0-362.18.1.el9_3, kernel-64k-5.14.0-362.18.1.el9_3 +29
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-362.18.1.el9_3, kernel-rt-core-5.14.0-362.18.1.el9_3, kernel-rt-debug-5.14.0-362.18.1.el9_3 +9
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-362.18.1.el9_3, kernel-rt-core-5.14.0-362.18.1.el9_3, kernel-rt-debug-5.14.0-362.18.1.el9_3 +11
  • RHSA-2024:0448 Released 2024-01-25 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.48.1.el9_2
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.48.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.48.1.el9_2, kernel-64k-devel-5.14.0-284.48.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.48.1.el9_2, kernel-5.14.0-284.48.1.el9_2, kernel-64k-5.14.0-284.48.1.el9_2 +29
  • RHSA-2024:0439 Released 2024-01-25 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.48.1.rt14.333.el9_2, kernel-rt-core-5.14.0-284.48.1.rt14.333.el9_2, kernel-rt-debug-5.14.0-284.48.1.rt14.333.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.48.1.rt14.333.el9_2, kernel-rt-core-5.14.0-284.48.1.rt14.333.el9_2, kernel-rt-debug-5.14.0-284.48.1.rt14.333.el9_2 +11
  • RHSA-2024:0412 Released 2024-01-25 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-tools-libs-devel-4.18.0-372.87.1.el8_6
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) bpftool-4.18.0-372.87.1.el8_6, kernel-4.18.0-372.87.1.el8_6, kernel-abi-stablelists-4.18.0-372.87.1.el8_6 +19
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.87.1.el8_6, perf-4.18.0-372.87.1.el8_6
  • RHSA-2023:7539 Released 2023-11-28 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.36.1.el8_8
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.36.1.el8_8, kernel-4.18.0-477.36.1.el8_8, kernel-abi-stablelists-4.18.0-477.36.1.el8_8 +19

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2024:0461
Red Hat CodeReady Linux Builder EUS (v.8.6)Fixed RHSA-2024:0412
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2023:7539
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2024:1250
Red Hat CodeReady Linux Builder EUS (v.9.2)Fixed RHSA-2024:0448
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:0461
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2024:1250
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:0448
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:3138
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:0461
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2024:1268
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2024:0562
Red Hat Enterprise Linux BaseOS E4S (v. 8.2)Fixed RHSA-2024:1268
Red Hat Enterprise Linux BaseOS E4S (v.8.4)Fixed RHSA-2024:0562
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2024:0412
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2023:7539
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2024:1250
Red Hat Enterprise Linux BaseOS EUS (v.9.2)Fixed RHSA-2024:0448
Red Hat Enterprise Linux BaseOS TUS (v. 8.2)Fixed RHSA-2024:1268
Red Hat Enterprise Linux BaseOS TUS (v.8.4)Fixed RHSA-2024:0562
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:3138
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2024:1249
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2024:1249
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2024:1249
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2024:2950
Red Hat Enterprise Linux NFV TUS (v.8.4)Fixed RHSA-2024:0563
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2024:2950
Red Hat Enterprise Linux RT TUS (v.8.4)Fixed RHSA-2024:0563
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2024:0461
Red Hat Enterprise Linux Real Time EUS (v.9.0)Fixed RHSA-2024:1306
Red Hat Enterprise Linux Real Time EUS (v.9.2)Fixed RHSA-2024:0439
Red Hat Enterprise Linux Real Time TUS (v. 8.2)Fixed RHSA-2024:1269
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2024:0461
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)Fixed RHSA-2024:1306
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2)Fixed RHSA-2024:0439
Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2)Fixed RHSA-2024:1269
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2024:1249
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2024:1249
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2024:1249
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2024:1249
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2024:1332
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2024:1332
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2024:0412
Not affected: 1 product
  • Red Hat Enterprise Linux AppStream EUS (v.9.2)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-38409
  2. 2026-10-03 Alias added: GHSA-jrp6-94m7-j7gw

References

Patch 1

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