The br_mdb_ip_get function in net/bridge/br_multicast.c in the Linux kernel before 2.6.35-rc5 allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an IGMP packet, related to lack of a multicast table
Published Feb 18, 2011
7.5
HIGHCVSS 3.1
EPSS 4.00%
Description
The br_mdb_ip_get function in net/bridge/br_multicast.c in the Linux kernel before 2.6.35-rc5 allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an IGMP packet, related to lack of a multicast table.
Affected products
No data.
- ≤ 2.6.34.7
- 2.6.35
- 2.6.35
- 2.6.35
- 2.6.35
- 2.6.35
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG as they did not backport the upstream commit eb1d1641 that introduced net/bridge/br_multicast.c. It did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 as it did not backport the upstream commit 8ef2a9a5 that introduced this issue.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.00% (0.04005) | 90.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.00% (0.04005) | 89.17th | v5 (v2026.06.15) |
| Mar 29, 2025 | 1.60% (0.01605) | 70.20th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.94% (0.02939) | 85.52th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.97% (0.00965) | 83.98th | v3 (v2023.03.01) |
| May 16, 2024 | 1.39% (0.01393) | 86.31th | v3 (v2023.03.01) |
| Mar 9, 2023 | 1.39% (0.01393) | 84.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.37% (0.01372) | 84.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
References (11)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7f285fa78d4b81b8458f05e77fb6b46245121b4e x_refsource_CONFIRM
- http://openwall.com/lists/oss-security/2011/02/16/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://openwall.com/lists/oss-security/2011/02/16/14 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/02/16/8 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.35/ChangeLog-2.6.35-rc5 x_refsource_CONFIRMBroken Link
- http://www.securityfocus.com/bid/41432 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.spinics.net/lists/netdev/msg134414.html mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- http://www.spinics.net/lists/netdev/msg134444.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-0709 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2011-0709
- https://www.cve.org/CVERecord?id=CVE-2011-0709
Change history (0)
No recorded changes yet.