Kernel: xfrm_user information leaks copy_to_user_
Published Mar 14, 2013
1.9
LOWCVSS 2.0
EPSS 0.36%
Description
net/xfrm/xfrm_user.c in the Linux kernel before 3.6 does not initialize certain structures, which allows local users to obtain sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability.
Affected products
No data.
Configuration 1
- ≤ 3.5.7
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.18
- 3.0.19
- 3.0.20
- 3.0.21
- 3.0.22
- 3.0.23
- 3.0.24
- 3.0.25
- 3.0.26
- 3.0.27
- 3.0.28
- 3.0.29
- 3.0.30
- 3.0.31
- 3.0.32
- 3.0.33
- 3.0.34
- 3.0.35
- 3.0.36
- 3.0.37
- 3.0.38
- 3.0.39
- 3.0.40
- 3.0.41
- 3.0.42
- 3.0.43
- 3.0.44
- 3.0.45
- 3.0.46
- 3.0.47
- 3.0.48
- 3.0.49
- 3.0.50
- 3.0.51
- 3.0.52
- 3.0.53
- 3.0.54
- 3.0.55
- 3.0.56
- 3.0.57
- 3.0.58
- 3.0.59
- 3.0.60
- 3.0.61
- 3.0.62
- 3.0.63
- 3.0.64
- 3.0.65
- 3.0.66
- 3.0.67
- 3.0.68
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.1.10
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 3.2.5
- 3.2.6
- 3.2.7
- 3.2.8
- 3.2.9
- 3.2.10
- 3.2.11
- 3.2.12
- 3.2.13
- 3.2.14
- 3.2.15
- 3.2.16
- 3.2.17
- 3.2.18
- 3.2.19
- 3.2.20
- 3.2.21
- 3.2.22
- 3.2.23
- 3.2.24
- 3.2.25
- 3.2.26
- 3.2.27
- 3.2.28
- 3.2.29
- 3.2.30
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3.1
- 3.3.2
- 3.3.3
- 3.3.4
- 3.3.5
- 3.3.6
- 3.3.7
- 3.3.8
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 3.4.5
- 3.4.6
- 3.4.7
- 3.4.8
- 3.4.9
- 3.4.10
- 3.4.11
- 3.4.12
- 3.4.13
- 3.4.14
- 3.4.15
- 3.4.16
- 3.4.17
- 3.4.18
- 3.4.19
- 3.4.20
- 3.4.21
- 3.4.22
- 3.4.23
- 3.4.24
- 3.4.25
- 3.4.26
- 3.4.27
- 3.4.28
- 3.4.29
- 3.4.30
- 3.4.31
- 3.4.32
- 3.5.1
- 3.5.2
- 3.5.3
- 3.5.4
- 3.5.5
- 3.5.6
Configuration 2
- 5
- 6.0
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-348.4.1.el5
Fixed · RHSA-2013:0747
Red Hat Enterprise Linux 6
kernel-0:2.6.32-358.6.1.el6
Fixed · RHSA-2013:0744
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-348.4.1.el5 | Fixed | RHSA-2013:0747 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-358.6.1.el6 | Fixed | RHSA-2013:0744 |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise MRG 2. This issue did affect the version of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.
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 | 0.36% (0.00361) | 27.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.38% (0.00376) | 29.13th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00078) | 20.88th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (15)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1f86840f897717f86d523a13e99a447e6a5d2fa5 x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7b789836f434c87168eab067cfbed1ec4783dffd x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f778a636713a435d3a922c60b1622a91136560c1 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2013-0744.html vendor-advisoryx_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2013/03/05/13 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-1792-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1798-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-6537 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=922424 Issue Tracking
- https://github.com/torvalds/linux/commit/1f86840f897717f86d523a13e99a447e6a5d2fa5 x_refsource_CONFIRM
- https://github.com/torvalds/linux/commit/7b789836f434c87168eab067cfbed1ec4783dffd x_refsource_CONFIRM
- https://github.com/torvalds/linux/commit/f778a636713a435d3a922c60b1622a91136560c1 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2012-6537
- https://www.cve.org/CVERecord?id=CVE-2012-6537
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2 x_refsource_CONFIRMPatch
Change history (0)
No recorded changes yet.