samba/cifs-utils: mount.cifs and umount.cifs fail to anticipate RLIMIT_FSIZE
Published Apr 10, 2011
3.3
LOWCVSS 2.0
EPSS 0.53%
Description
smbfs in Samba 3.5.8 and earlier attempts to use (1) mount.cifs to append to the /etc/mtab file and (2) umount.cifs to append to the /etc/mtab.tmp file without first checking whether resource limits would interfere, which allows local users to trigger corruption of the /etc/mtab file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
samba-0:3.0.33-0.34.el4
Fixed · RHSA-2011:1219
Red Hat Enterprise Linux 5
samba-0:3.0.33-3.29.el5_7.4
Fixed · RHSA-2011:1219
Red Hat Enterprise Linux 5
samba3x-0:3.5.4-0.83.el5_7.2
Fixed · RHSA-2011:1220
Red Hat Enterprise Linux 6
cifs-utils-0:4.8.1-2.el6_1.2
Fixed · RHSA-2011:1221
Red Hat Enterprise Linux 6
samba-0:3.5.6-86.el6_1.4
Fixed · RHSA-2011:1221
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | samba-0:3.0.33-0.34.el4 | Fixed | RHSA-2011:1219 |
| Red Hat Enterprise Linux 5 | samba-0:3.0.33-3.29.el5_7.4 | Fixed | RHSA-2011:1219 |
| Red Hat Enterprise Linux 5 | samba3x-0:3.5.4-0.83.el5_7.2 | Fixed | RHSA-2011:1220 |
| Red Hat Enterprise Linux 6 | cifs-utils-0:4.8.1-2.el6_1.2 | Fixed | RHSA-2011:1221 |
| Red Hat Enterprise Linux 6 | samba-0:3.5.6-86.el6_1.4 | Fixed | RHSA-2011:1221 |
No package ranges for this CVE.
Remediation
Red Hat statement
On Red Hat Enterprise Linux, by default, mount.cifs is not provided with the setuid bit enabled. If a user has turned on the setuid bit (via chmod +s /sbin/mount.cifs), they would be affected by this issue, and can work around the problem by removing the setuid bit. Red Hat Enterprise Linux 3 does not provide the mount.cifs program.
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:P/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00531) | 42.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00531) | 40.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.20% (0.00203) | 40.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00063) | 28.90th | v3 (v2023.03.01) |
| Apr 26, 2024 | 0.06% (0.00063) | 25.87th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.58th | 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 (23)
- http://openwall.com/lists/oss-security/2011/03/04/10 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/04/11 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/04/12 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/04/9 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/05/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/05/7 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/07/9 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/14/16 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/14/5 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/14/7 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/15/6 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/22/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/22/6 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/31/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/03/31/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2011/04/01/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:148 vendor-advisoryx_refsource_MANDRIVABroken Link
- https://access.redhat.com/security/cve/CVE-2011-1678 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=688980 x_refsource_MISCIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=695925 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66702 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2011-1678
- https://www.cve.org/CVERecord?id=CVE-2011-1678
Change history (0)
No recorded changes yet.