kernel: uts: stack memory leak in UNAME26
Published Dec 21, 2012
4.9
MEDIUMCVSS 2.0
EPSS 0.96%
Description
The override_release function in kernel/sys.c in the Linux kernel before 3.4.16 allows local users to obtain sensitive information from kernel stack memory via a uname system call in conjunction with a UNAME26 personality.
Affected products
No data.
- ≤ 3.4.15
- 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
- 3.1
- 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
- 3.2.1
- 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
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4.1
- 3.4.1
- 3.4.2
- 3.4.2
- 3.4.3
- 3.4.3
- 3.4.4
- 3.4.4
- 3.4.5
- 3.4.5
- 3.4.10
- 3.4.11
- 3.4.12
- 3.4.13
- 3.4.14
No data.
Red Hat Enterprise MRG 2
kernel-rt-0:3.2.33-rt50.66.el6rt
Fixed · RHSA-2012:1491
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.2.33-rt50.66.el6rt | Fixed | RHSA-2012:1491 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 5. This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 6. This issue did affect the version of Linux kernel as shipped with Red Hat Enterprise MRG 2.
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:L/Au:N/C:C/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 | 0.96% (0.00959) | 60.09th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.96% (0.00959) | 56.70th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.37% (0.00371) | 56.76th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 0.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.52% (0.03516) | 84.85th | v2 (v2022.01.01) |
| Dec 4, 2022 | 3.52% (0.03516) | 84.40th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.53% (0.03534) | 83.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.53% (0.03534) | 66.49th | v2 (v2022.01.01) |
References (17)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2702b1526c7278c4d65d78de209a465d4de2885e x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html vendor-advisoryx_refsource_FEDORA
- http://secunia.com/advisories/51409 third-party-advisoryx_refsource_SECUNIA
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.16 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2012/10/09/4 mailing-listx_refsource_MLISTExploit
- http://www.ubuntu.com/usn/USN-1644-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1645-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1646-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1647-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1648-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1649-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1652-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-0957 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=862877 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/2702b1526c7278c4d65d78de209a465d4de2885e x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2012-0957
- https://www.cve.org/CVERecord?id=CVE-2012-0957
Change history (0)
No recorded changes yet.