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TI-2017-01884 Aliases CVE-2017-2634GHSA-qmpj-vx37-329m

NULL pointer dereference in Linux kernel:

Priority MEDIUM 41CWE-476Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

It was found that the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation before 2.6.22.17 used the IPv4-only inet_sk_rebuild_header() function for both IPv4 and IPv6 DCCP connections, which could result in memory corruptions. A remote attacker could use this flaw to crash the system.

Why it matters now

EPSS 0.05154 92nd percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Linuxkernel:2.6.22.17—No fix listedCNA
  • kernel: VendorLinux Affected 2.6.22.17 Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 2.6.22.17VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:5.6:*:*:*:*:*:*:*5.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:5.9:*:*:*:*:*:*:*5.9VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.22.17 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:5.6:*:*:*:*:*:*:* Versions 5.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:5.9:*:*:*:*:*:*:* Versions 5.9 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat

Remediation

Red Hat 3 advisories

  • RHSA-2017:0346 Released 2017-02-28 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Long Life (v. 5.9 server) kernel-2.6.18-348.33.1.el5, kernel-PAE-2.6.18-348.33.1.el5, kernel-PAE-devel-2.6.18-348.33.1.el5 +8
  • RHSA-2017:0347 Released 2017-02-28 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Long Life (v. 5.6 server) kernel-2.6.18-238.58.1.el5, kernel-2.6.18-238.58.1.el5.ia64, kernel-PAE-2.6.18-238.58.1.el5 +15
  • RHSA-2017:0323 Released 2017-02-24 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-419.el5, kernel-2.6.18-419.el5.ia64, kernel-PAE-2.6.18-419.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-419.el5, kernel-PAE-2.6.18-419.el5, kernel-PAE-devel-2.6.18-419.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-2017:0323
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2017:0323
Red Hat Enterprise Linux Long Life (v. 5.6 server)Fixed RHSA-2017:0347
Red Hat Enterprise Linux Long Life (v. 5.9 server)Fixed RHSA-2017:0346
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-2634
  2. 2026-10-03 Alias added: GHSA-qmpj-vx37-329m

References

Patch 2

Advisory 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