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Fencer Intel
medium 4.7

CVE-2011-0716 json

The br_multicast_add_group function in net/bridge/br_multicast.c in the Linux kernel before 2.6.38, when a certain Ethernet bridge configur…

published 2012-06-21 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0731

cvss
4.7
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

The br_multicast_add_group function in net/bridge/br_multicast.c in the Linux kernel before 2.6.38, when a certain Ethernet bridge configuration is used, allows local users to cause a denial of service (memory corruption and system crash) by sending IGMP packets to a local interface.

Patch / fix

  • kernel RHEL 6 2.6.32-71.24.1.el6
  • perf RHEL 6 2.6.32-71.24.1.el6
  • kernel-kdump RHEL 6 2.6.32-71.24.1.el6
  • kernel-firmware RHEL 6 2.6.32-71.24.1.el6
  • kernel-bootwrapper RHEL 6 2.6.32-71.24.1.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-71.24.1.el6
  • kernel-debuginfo-common-ppc64 RHEL 6 2.6.32-71.24.1.el6
  • kernel-debuginfo-common-s390x RHEL 6 2.6.32-71.24.1.el6

red hat advisories RHSA-2011:0421

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-2011-0716 updated cvss 4.7

kernel: deficiency in processing igmp host membership reports in br_multicast

  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-71.24.1.el6, kernel 2.6.32-71.24.1.el6, kernel-kdump 2.6.32-71.24.1.el6, kernel-firmware 2.6.32-71.24.1.el6, kernel-bootwrapper 2.6.32-71.24.1.el6, kernel-debuginfo-common-i686 2.6.32-71.24.1.el6, +3 more
    fixed: vendor fix RHSA-2011:0421
  • Red Hat Enterprise Linux Desktop (v. 6) kernel-headers 2.6.32-71.24.1.el6 Red Hat Enterprise Linux HPC Node (v. 6) kernel-headers 2.6.32-71.24.1.el6 Red Hat Enterprise Linux Server (v. 6) kernel-headers 2.6.32-71.24.1.el6 Red Hat Enterprise Linux Workstation (v. 6) kernel-headers 2.6.32-71.24.1.el6
    not affected: vulnerable code not present

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

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.7 AV:L/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.