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TI-2011-02383 Aliases CVE-2011-2723GHSA-gj23-gxgc-vvhj

The skb_gro_header_slow function in include/linux/netdevice.h in the Linux kernel before…

Priority LOW 28CWE-20Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
—
Confidentiality · integrity · availability
None · None · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

The skb_gro_header_slow function in include/linux/netdevice.h in the Linux kernel before 2.6.39.4, when Generic Receive Offload (GRO) is enabled, resets certain fields in incorrect situations, which allows remote attackers to cause a denial of service (system crash) via crafted network traffic.

Why it matters now

EPSS 0.01106 66th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 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 2.6.39.4VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.39.4 Vulnerable ·Linux

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-2011:1386 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
  • RHSA-2011:1350 Released 2011-10-05 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.17.1.el6, kernel-bootwrapper-2.6.32-131.17.1.el6, kernel-debug-2.6.32-131.17.1.el6 +8
Show 1 more Red Hat advisories
  • RHSA-2011:1321 Released 2011-09-20 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux (v. 5.6.z server) kernel-2.6.18-238.27.1.el5, kernel-2.6.18-238.27.1.el5.ia64, kernel-PAE-2.6.18-238.27.1.el5 +18

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-2011:1386
Red Hat Enterprise Linux (v. 5.6.z server)Fixed RHSA-2011:1321
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2011:1386
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1350
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2012:0010
Not affected: 3 products
  • Red Hat Enterprise Linux (v. 5 server)
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux Desktop (v. 5 client)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-2723
  2. 2026-10-03 Alias added: GHSA-gj23-gxgc-vvhj
  3. 2026-11-05 Affected versions changed · Red Hat

References

Patch 3

Advisory 2

Other 2

  • 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