kernel: nfsd should drop CAP_MKNOD for non-root
Published Mar 25, 2009
4.9
MEDIUMCVSS 2.0
EPSS 0.43%
Description
nfsd in the Linux kernel before 2.6.28.9 does not drop the CAP_MKNOD capability before handling a user request in a thread, which allows local users to create device nodes, as demonstrated on a filesystem that has been exported with the root_squash option.
Affected products
No data.
Configuration 1
- < 2.6.28.9
Configuration 2
- 10.3
- 11.0
- 11.1
- 10
- 10
Configuration 3
- 4.0
- 5.0
Configuration 4
- 6.06
- 8.04
- 8.10
- 9.04
Configuration 5
- 4.0
- 2.0.2
- 2.5
Configuration 6
Configuration 7
Running on/with
- 5.0
No data.
MRG for RHEL-5
kernel-rt-0:2.6.24.7-117.el5rt
Fixed · RHSA-2009:1081
Red Hat Enterprise Linux 4
kernel-0:2.6.9-89.0.3.EL
Fixed · RHSA-2009:1132
Red Hat Enterprise Linux 5
kernel-0:2.6.18-128.1.14.el5
Fixed · RHSA-2009:1106
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.24.7-117.el5rt | Fixed | RHSA-2009:1081 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-89.0.3.EL | Fixed | RHSA-2009:1132 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-128.1.14.el5 | Fixed | RHSA-2009:1106 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue is not planned to be fixed in Red Hat Enterprise Linux 2.1 and 3, due to these products being in Production 3 of their maintenance life-cycles, where only qualified security errata of important or critical impact are addressed.
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:C/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 2, 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 2, 2026 | 0.43% (0.00427) | 34.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.43% (0.00427) | 33.85th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.80% (0.00801) | 72.41th | v4 (v2025.03.14) |
| Dec 12, 2024 | 96.63% (0.96625) | 99.69th | v3 (v2023.03.01) |
| Jun 18, 2024 | 96.59% (0.96586) | 99.63th | v3 (v2023.03.01) |
| May 14, 2024 | 96.81% (0.96810) | 99.68th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.89% (0.96889) | 99.46th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (33)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=76a67ec6fb79ff3570dcb5342142c16098299911 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00007.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00002.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00000.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://secunia.com/advisories/34422 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/34432 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/34786 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35121 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35185 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35343 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35390 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35394 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35656 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/37471 third-party-advisoryx_refsource_SECUNIABroken Link
- http://thread.gmane.org/gmane.linux.kernel/805280 mailing-listx_refsource_MLISTBroken Link
- http://www.debian.org/security/2009/dsa-1800 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.9 x_refsource_CONFIRMBroken Link
- http://www.openwall.com/lists/oss-security/2009/03/23/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2009-1081.html vendor-advisoryx_refsource_REDHATBroken Link
- http://www.securityfocus.com/archive/1/507985/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/34205 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/usn-793-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html x_refsource_CONFIRMThird Party Advisory
- http://www.vupen.com/english/advisories/2009/0802 vdb-entryx_refsource_VUPENBroken Link
- http://www.vupen.com/english/advisories/2009/3316 vdb-entryx_refsource_VUPENBroken Link
- https://access.redhat.com/security/cve/CVE-2009-1072 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=491572 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49356 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2009-1072
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10314 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8382 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2009-1072
Change history (0)
No recorded changes yet.