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TI-2012-05356 Aliases CVE-2012-6638GHSA-wq3v-5978-56ch

The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before…

Priority MEDIUM 40CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.

Why it matters now

EPSS 0.03336 88th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

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 · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 3.0.38; 3.1 to before 3.2.24VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.0.38; 3.1 to before 3.2.24 Vulnerable ·Linux

Remediation

Red Hat 2 advisories

  • RHSA-2014:0772 Released 2014-06-19 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux EUS (v. 5.9 server) kernel-2.6.18-348.27.1.el5, kernel-2.6.18-348.27.1.el5.ia64, kernel-PAE-2.6.18-348.27.1.el5 +18
  • RHSA-2014:0433 Released 2014-04-24 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-371.8.1.el5, kernel-2.6.18-371.8.1.el5.ia64, kernel-PAE-2.6.18-371.8.1.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-371.8.1.el5, kernel-PAE-2.6.18-371.8.1.el5, kernel-PAE-devel-2.6.18-371.8.1.el5 +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2014:0433
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2014:0433
Red Hat Enterprise Linux EUS (v. 5.9 server)Fixed RHSA-2014:0772
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-6638
  2. 2026-10-03 Alias added: GHSA-wq3v-5978-56ch

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