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TI-2011-02818 Aliases CVE-2011-3188GHSA-93rr-wh56-p8fw

The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified…

Priority MEDIUM 47Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Partial Red Hat: 5 fixed, 1 without a fix

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

Summary

The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to generate sequence numbers and Fragment Identification values, which makes it easier for remote attackers to cause a denial of service (disrupted networking) or hijack network sessions by predicting these values and sending crafted packets.

Why it matters now

EPSS 0.05028 92nd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 5 fixed, 1 without a fix

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 · 17

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 3.1VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:a:f5:arx:*:*:*:*:*:*:*:*6.0.0 – 6.4.0VulnerableF5
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*10.1.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*10.0.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*10.1.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*10.0.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*10.0.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*10.0.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.1 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:a:f5:arx:*:*:*:*:*:*:*:* Versions 6.0.0 – 6.4.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* Versions 10.1.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 10.0.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* Versions 10.1.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* Versions 10.0.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 10.0.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 10.0.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
Show 7 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_protocol_security_module:*:*:*:*:*:*:*:*10.0.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_wan_optimization_manager:*:*:*:*:*:*:*:*10.0.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*10.0.0 – 10.2.4; 11.0.0 – 11.1.0VulnerableF5
cpe:2.3:a:f5:enterprise_manager:*:*:*:*:*:*:*:*2.1.0 – 2.3.0VulnerableF5
cpe:2.3:a:f5:enterprise_manager:3.0.0:*:*:*:*:*:*:*3.0.0VulnerableF5
cpe:2.3:a:f5:firepass:*:*:*:*:*:*:*:*6.0.0 – 6.1.0VulnerableF5
cpe:2.3:a:f5:firepass:7.0.0:*:*:*:*:*:*:*7.0.0VulnerableF5
  • cpe:2.3:a:f5:big-ip_protocol_security_module:*:*:*:*:*:*:*:* Versions 10.0.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_wan_optimization_manager:*:*:*:*:*:*:*:* Versions 10.0.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* Versions 10.0.0 – 10.2.4; 11.0.0 – 11.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:enterprise_manager:*:*:*:*:*:*:*:* Versions 2.1.0 – 2.3.0 Vulnerable ·F5
  • cpe:2.3:a:f5:enterprise_manager:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:firepass:*:*:*:*:*:*:*:* Versions 6.0.0 – 6.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:firepass:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·F5

Remediation

Red Hat 4 advisories

  • RHSA-2012:0010 Released 2012-01-10 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-2.6.33.9-rt31.79.el6rt, kernel-rt-debug-2.6.33.9-rt31.79.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.79.el6rt +7
  • RHSA-2011:1465 Released 2011-11-22 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.21.1.el6, kernel-bootwrapper-2.6.32-131.21.1.el6, kernel-debug-2.6.32-131.21.1.el6 +8
  • RHSA-2011:1419 Released 2011-11-01 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux EUS (v. 5.6 server) kernel-2.6.18-238.28.1.el5, kernel-2.6.18-238.28.1.el5.ia64, kernel-PAE-2.6.18-238.28.1.el5 +18
Show 1 more Red Hat advisories
  • RHSA-2011:1386 Released 2011-10-20 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-274.7.1.el5, kernel-2.6.18-274.7.1.el5.ia64, kernel-PAE-2.6.18-274.7.1.el5 +14
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-274.7.1.el5, kernel-PAE-2.6.18-274.7.1.el5, kernel-PAE-devel-2.6.18-274.7.1.el5 +6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 4AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2011:1386
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2011:1386
Red Hat Enterprise Linux EUS (v. 5.6 server)Fixed RHSA-2011:1419
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1465
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2012:0010
Not affected: 2 products
  • Red Hat Enterprise Linux (v. 5 server)
  • Red Hat Enterprise Linux Desktop (v. 5 client)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-3188
  2. 2026-10-03 Alias added: GHSA-93rr-wh56-p8fw
  3. 2026-11-05 Affected versions changed · Red Hat

References

Patch 5

Advisory 1

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences