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Fencer Intel
medium 5.7

CVE-2011-3593 json

A certain Red Hat patch to the vlan_hwaccel_do_receive function in net/8021q/vlan_core.c in the Linux kernel 2.6.32 on Red Hat Enterprise L…

published 2013-06-08 13 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3552

cvss
5.7
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

A certain Red Hat patch to the vlan_hwaccel_do_receive function in net/8021q/vlan_core.c in the Linux kernel 2.6.32 on Red Hat Enterprise Linux (RHEL) 6 allows remote attackers to cause a denial of service (system crash) via priority-tagged VLAN frames.

Patch / fix

  • kernel RHEL 6 2.6.32-131.21.1.el6
  • perf RHEL 6 2.6.32-131.21.1.el6
  • kernel-kdump RHEL 6 2.6.32-131.21.1.el6
  • kernel-firmware RHEL 6 2.6.32-131.21.1.el6
  • kernel-bootwrapper RHEL 6 2.6.32-131.21.1.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-131.21.1.el6
  • kernel-debuginfo-common-ppc64 RHEL 6 2.6.32-131.21.1.el6
  • kernel-debuginfo-common-s390x RHEL 6 2.6.32-131.21.1.el6

red hat advisories RHSA-2011:1465

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-3593 updated cvss 5.7

kernel: vlan: fix panic when handling priority tagged frames

  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-131.21.1.el6, kernel 2.6.32-131.21.1.el6, kernel-kdump 2.6.32-131.21.1.el6, kernel-firmware 2.6.32-131.21.1.el6, kernel-bootwrapper 2.6.32-131.21.1.el6, kernel-debuginfo-common-i686 2.6.32-131.21.1.el6, +3 more
    fixed: vendor fix RHSA-2011:1465

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.7 AV:A/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.