kernel signal spoofing issue
Published Mar 1, 2013
3.6
LOWCVSS 2.0
EPSS 0.48%
Description
kernel/signal.c in the Linux kernel before 2.6.39 allows local users to spoof the uid and pid of a signal sender via a sigqueueinfo system call.
Affected products
No data.
Configuration 1
- < 2.6.39
Configuration 2
- 5.0
- 5.6
- 5.0
- 5.6
- 5.0
- 5.0
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-238.19.1.el5
Fixed · RHSA-2011:0927
Red Hat Enterprise Linux 6
kernel-0:2.6.32-131.12.1.el6
Fixed · RHSA-2011:1189
Red Hat Enterprise Linux 6.0 EUS - Server Only
kernel-0:2.6.32-71.31.1.el6
Fixed · RHSA-2011:0883
Red Hat Enterprise MRG 1
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-238.19.1.el5 | Fixed | RHSA-2011:0927 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-131.12.1.el6 | Fixed | RHSA-2011:1189 |
| Red Hat Enterprise Linux 6.0 EUS - Server Only | kernel-0:2.6.32-71.31.1.el6 | Fixed | RHSA-2011:0883 |
| Red Hat Enterprise MRG 1 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
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. This was addressed in Red Hat Enterprise Linux 5 and 6 via https://rhn.redhat.com/errata/RHSA-2011-0927.html and https://rhn.redhat.com/errata/RHSA-2011-1189.html. A future kernel update in Red Hat Enterprise MRG may address this flaw.
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:N/I:P/A:P
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.48% (0.00485) | 39.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.49% (0.00489) | 38.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00059) | 15.60th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.03% (0.01034) | 41.16th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.28% (0.01282) | 67.60th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
No CWE recorded.
References (9)
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 x_refsource_CONFIRMThird Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=da48524eb20662618854bb3df2db01fc65f3070c x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2011-0927.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/03/23/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-1182 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=690028 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/da48524eb20662618854bb3df2db01fc65f3070c x_refsource_CONFIRMExploitPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2011-1182
- https://www.cve.org/CVERecord?id=CVE-2011-1182
| Link | Providers | Tags |
|---|---|---|
| http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 | x_refsource_CONFIRMThird Party Advisory | |
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=da48524eb20662618854bb3df2db01fc65f3070c | x_refsource_CONFIRM | |
| http://rhn.redhat.com/errata/RHSA-2011-0927.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2011/03/23/2 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2011-1182 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=690028 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://github.com/torvalds/linux/commit/da48524eb20662618854bb3df2db01fc65f3070c | x_refsource_CONFIRMExploitPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-1182 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-1182 |
Change history (0)
No recorded changes yet.