kernel: igmp: Avoid zero delay when receiving odd mixture of IGMP queries
Published May 17, 2012
7.5
HIGHCVSS 3.1
EPSS 20.28%
Description
The igmp_heard_query function in net/ipv4/igmp.c in the Linux kernel before 3.2.1 allows remote attackers to cause a denial of service (divide-by-zero error and panic) via IGMP packets.
Affected products
No data.
Configuration 1
- < 3.0.17
- ≥ 3.1 · < 3.1.9
- ≥ 3.2 · < 3.2.1
Configuration 2
- 5.6
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.2-20120320.0.el6_2
Fixed · RHSA-2012:0422
Red Hat Enterprise Linux 5
kernel-0:2.6.18-274.18.1.el5
Fixed · RHSA-2012:0107
Red Hat Enterprise Linux 6
kernel-0:2.6.32-220.7.1.el6
Fixed · RHSA-2012:0350
Red Hat Enterprise MRG 2
kernel-rt-0:3.0.18-rt34.53.el6rt
Fixed · RHSA-2012:0333
Red Hat Enterprise Linux 4
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.2-20120320.0.el6_2 | Fixed | RHSA-2012:0422 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-274.18.1.el5 | Fixed | RHSA-2012:0107 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-220.7.1.el6 | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.0.18-rt34.53.el6rt | Fixed | RHSA-2012:0333 |
| Red Hat Enterprise Linux 4 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the Linux kernel as shipped with Red Hat Enterprise Linux 4 as it did not backport the upstream commit 5b7c8406.
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 (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 20.28% (0.20276) | 97.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 20.49% (0.20492) | 97.17th | v5 (v2026.06.15) |
| Apr 8, 2026 | 11.75% (0.11746) | 93.69th | v4 (v2025.03.14) |
| Jan 9, 2026 | 15.69% (0.15689) | 94.49th | v4 (v2025.03.14) |
| Mar 30, 2025 | 13.17% (0.13170) | 93.51th | v4 (v2025.03.14) |
| Mar 29, 2025 | 17.68% (0.17683) | 91.93th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.17% (0.13170) | 93.58th | v4 (v2025.03.14) |
| Dec 17, 2024 | 1.23% (0.01230) | 85.15th | v3 (v2023.03.01) |
| Sep 17, 2024 | 4.90% (0.04900) | 92.94th | v3 (v2023.03.01) |
| May 24, 2024 | 1.07% (0.01068) | 84.17th | v3 (v2023.03.01) |
| May 10, 2024 | 0.89% (0.00891) | 82.53th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.87% (0.00873) | 82.21th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.72% (0.00720) | 80.14th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.60% (0.00605) | 77.89th | v3 (v2023.03.01) |
| Dec 16, 2023 | 4.10% (0.04102) | 91.25th | v3 (v2023.03.01) |
| Nov 8, 2023 | 3.67% (0.03670) | 90.67th | v3 (v2023.03.01) |
| Aug 11, 2023 | 3.12% (0.03124) | 89.79th | v3 (v2023.03.01) |
| Jun 11, 2023 | 3.55% (0.03550) | 90.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.47% (0.04472) | 91.14th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.79% (0.06790) | 92.15th | v2 (v2022.01.01) |
| Aug 1, 2022 | 6.79% (0.06790) | 91.77th | v2 (v2022.01.01) |
| Apr 30, 2022 | 7.02% (0.07015) | 91.54th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.39% (0.07392) | 91.88th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.39% (0.07392) | 80.76th | v2 (v2022.01.01) |
References (10)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654876 x_refsource_CONFIRMExploitMailing ListThird Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27 x_refsource_CONFIRM
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.1 x_refsource_CONFIRMMailing ListPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2012/01/10/5 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2012-0207 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=772867 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/25c413ad0029ea86008234be28aee33456e53e5b x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2012-0207
- https://www.cve.org/CVERecord?id=CVE-2012-0207
Change history (0)
No recorded changes yet.