kernel: Information leak in the Data Center Bridging (DCB) component
Published Mar 22, 2013
1.9
LOWCVSS 2.0
EPSS 0.46%
Description
net/dcb/dcbnl.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.
Affected products
No data.
- ≤ 3.8.3
- 3.8.0
- 3.8.1
- 3.8.2
No data.
OpenStack 3 for RHEL 6
kernel-0:2.6.32-358.114.1.openstack.el6
Fixed · RHSA-2013:1080
Red Hat Enterprise Linux 6
kernel-0:2.6.32-358.14.1.el6
Fixed · RHSA-2013:1051
Red Hat Enterprise MRG 2
kernel-rt-0:3.6.11.2-rt33.39.el6rt
Fixed · RHSA-2013:0829
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| OpenStack 3 for RHEL 6 | kernel-0:2.6.32-358.114.1.openstack.el6 | Fixed | RHSA-2013:1080 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-358.14.1.el6 | Fixed | RHSA-2013:1051 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.6.11.2-rt33.39.el6rt | Fixed | RHSA-2013:0829 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5. This issue does affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2 may address this issue.
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:L/AC:M/Au:N/C:P/I:N/A:N
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.46% (0.00455) | 37.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.46% (0.00455) | 35.91th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00031) | 5.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00118) | 47.53th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.12% (0.00118) | 46.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00118) | 44.10th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (19)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=29cd8ae0e1a39e239a3a7b67da1986add1199fc0 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2013-1051.html vendor-advisoryx_refsource_REDHAT
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 vendor-advisoryx_refsource_MANDRIVA
- http://www.openwall.com/lists/oss-security/2013/03/20/1 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-1809-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1811-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1812-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1813-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1814-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1829-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-2634 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=923652 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=924689 Issue Tracking
- https://github.com/torvalds/linux/commit/29cd8ae0e1a39e239a3a7b67da1986add1199fc0 x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2013-2634
- https://www.cve.org/CVERecord?id=CVE-2013-2634
Change history (0)
No recorded changes yet.