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CVE-2011-1678

14
FAUCET Score

CVE-2011-1678 describes a vulnerability in Samba versions 3.5.8 and earlier, where the smbfs component attempts to append to /etc/mtab or /etc/mtab.tmp without checking resource limits. This oversight allows local users with a small RLIMIT_FSIZE value to corrupt the /etc/mtab file, similar to CVE-2011-1089. The vulnerability has a low severity CVSS score of 3.3, indicating local access and medium attack complexity, with potential for partial confidentiality and integrity impact. There is no evidence of active exploitation, no known exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.5.8CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

AV:L/AC:M/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 88th percentile among its peer group of 747 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: samba-0:3.0.33-0.34.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: samba-0:3.0.33-3.29.el5_7.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: samba3x-0:3.5.4-0.83.el5_7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: cifs-utils-0:4.8.1-2.el6_1.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: samba-0:3.5.6-86.el6_1.4
View patch

Vendor Advisories (1)

redhatCVE-2011-1678Low

samba/cifs-utils: mount.cifs and umount.cifs fail to anticipate RLIMIT_FSIZE

Mar 3, 2011

References

openwall.com / lists/oss-security/2011/03/04/10
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/04/11
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/04/12
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/04/9
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/05/3
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/05/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/07/9
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/14/16
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/14/5
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/14/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/15/6
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/22/4
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/22/6
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/31/3
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/03/31/4
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/01/2
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
exchange.xforce.ibmcloud.com / vulnerabilities/66702
mandriva.com / security/advisories
Broken Link