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TI-2024-24453 Aliases CVE-2024-36903

ipv6: Fix potential uninit-value access in __ip6_make_skb()

Priority LOW 24CWE-908Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 5 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-908 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix potential uninit-value access in __ip6_make_skb() As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00241 15th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.248, 5.15.198, 6.1.140 +7Red Hat: 1 advisoryRed Hat: 5 fixed, 3 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
LinuxLinux5.10.178 to before 5.10.248; 5.15.107 to before 5.15.198; 6.1.24 to before 6.1.140; 4.14.313 to before 4.15; 4.19.281 to before 4.20; 5.4.241 to before 5.5; 6.2.11 to before 6.35.10.248, 5.15.198, 6.1.140, 4.15, 4.20, 5.5, 6.3Patch availableCNA
LinuxLinux6.3 and later5.10.248, 5.15.198, 6.1.140, 6.6.31, 6.8.10, 6.9Patch availableCNA
  • Linux VendorLinux Affected 5.10.178 to before 5.10.248; 5.15.107 to before 5.15.198; 6.1.24 to before 6.1.140; 4.14.313 to before 4.15; 4.19.281 to before 4.20; 5.4.241 to before 5.5; 6.2.11 to before 6.3 Fixed in 5.10.248, 5.15.198, 6.1.140, 4.15, 4.20, 5.5, 6.3 Patch available CNA
  • Linux VendorLinux Affected 6.3 and later Fixed in 5.10.248, 5.15.198, 6.1.140, 6.6.31, 6.8.10, 6.9 Patch available CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.14.313 to before 4.15; 4.19.281 to before 4.20; 5.4.241 to before 5.5; 5.10.178 to before 5.11; 5.15.107 to before 5.16; 6.1.24 to before 6.2; 6.2.11 to before 6.6.31; 6.7 to before 6.8.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*6.9 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*6.9 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*6.9 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*6.9 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*6.9 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:*6.9 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.9:rc7:*:*:*:*:*:*6.9 rc7VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.14.313 to before 4.15; 4.19.281 to before 4.20; 5.4.241 to before 5.5; 5.10.178 to before 5.11; 5.15.107 to before 5.16; 6.1.24 to before 6.2; 6.2.11 to before 6.6.31; 6.7 to before 6.8.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* Versions 6.9 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* Versions 6.9 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* Versions 6.9 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* Versions 6.9 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:* Versions 6.9 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:* Versions 6.9 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.9:rc7:*:*:*:*:*:* Versions 6.9 rc7 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.140, 4.15, 4.20, 5.5, 6.3
  • Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.140, 6.6.31, 6.8.10, 6.9

Red Hat 1 advisory

  • RHSA-2024:5363 Released 2024-08-15 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.31.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.31.1.el9_4, kernel-64k-devel-5.14.0-427.31.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.31.1.el9_4, kernel-5.14.0-427.31.1.el9_4, kernel-64k-5.14.0-427.31.1.el9_4 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.31.1.el9_4, libperf-5.14.0-427.31.1.el9_4
    • Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.31.1.el9_4, kernel-rt-core-5.14.0-427.31.1.el9_4, kernel-rt-debug-5.14.0-427.31.1.el9_4 +11
    • Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.31.1.el9_4, kernel-rt-core-5.14.0-427.31.1.el9_4, kernel-rt-debug-5.14.0-427.31.1.el9_4 +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 Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux NFV (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux RT (v. 9)Fixed RHSA-2024:5363
Not affected: 3 products
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux CRB (v. 9)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-36903
  2. 2026-10-29 Affected versions changed · Red Hat

References

Patch 3

Other 3

  • 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