kernel: panic in ib_cm:cm_work_handler
Published Mar 15, 2011
5.7
MEDIUMCVSS 2.0
EPSS 1.18%
Description
Race condition in the cm_work_handler function in the InfiniBand driver (drivers/infiniband/core/cma.c) in Linux kernel 2.6.x allows remote attackers to cause a denial of service (panic) by sending an InfiniBand request while other request handlers are still running, which triggers an invalid pointer dereference.
Affected products
No data.
Configuration 1
- ≥ 2.6.0 · ≤ 2.6.39.4
Configuration 2
- 5.0
- 5.6
- 5.0
- 5.6
- 5.0
Configuration 3
- 8.04
No data.
MRG for RHEL-5
kernel-rt-0:2.6.33.9-rt31.64.el5rt
Fixed · RHSA-2011:0500
Red Hat Enterprise Linux 5
kernel-0:2.6.18-238.19.1.el5
Fixed · RHSA-2011:0927
Red Hat Enterprise Linux 6
kernel-0:2.6.32-71.24.1.el6
Fixed · RHSA-2011:0421
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.33.9-rt31.64.el5rt | Fixed | RHSA-2011:0500 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-238.19.1.el5 | Fixed | RHSA-2011:0927 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-71.24.1.el6 | Fixed | RHSA-2011:0421 |
No package ranges for this CVE.
Remediation
Red Hat statement
This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0927.html, https://rhn.redhat.com/errata/RHSA-2011-0421.html, and https://rhn.redhat.com/errata/RHSA-2011-0500.html. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:A/AC:M/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 | 1.18% (0.01184) | 66.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.19% (0.01194) | 63.89th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.53% (0.00531) | 65.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.38% (0.00384) | 73.94th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00557) | 76.92th | v3 (v2023.03.01) |
| Apr 3, 2023 | 0.56% (0.00557) | 74.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.47% (0.00471) | 71.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.41% (0.01408) | 72.37th | v2 (v2022.01.01) |
| Feb 3, 2023 | 3.78% (0.03779) | 85.12th | 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 (12)
- http://rhn.redhat.com/errata/RHSA-2011-0927.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/43693 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/03/11/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/46839 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.spinics.net/lists/linux-rdma/msg07447.html mailing-listx_refsource_MLISTExploitMailing ListPatchThird Party Advisory
- http://www.spinics.net/lists/linux-rdma/msg07448.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.ubuntu.com/usn/USN-1146-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-0695 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=653648 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66056 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2011-0695
- https://www.cve.org/CVERecord?id=CVE-2011-0695
Change history (0)
No recorded changes yet.