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Fencer Intel
low 1.2

CVE-2011-2724 json

The check_mtab function in client/mount.cifs.c in mount.cifs in smbfs in Samba 3.5.10 and earlier does not properly verify that the (1) dev…

published 2011-09-06 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2702

cvss
1.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

The check_mtab function in client/mount.cifs.c in mount.cifs in smbfs in Samba 3.5.10 and earlier does not properly verify that the (1) device name and (2) mountpoint strings are composed of valid characters, which allows local users to cause a denial of service (mtab corruption) via a crafted string. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-0547.

Patch / fix

  • samba Debian 14, Debian 13, Debian 12 2:3.4.7~dfsg-2
  • cifs-utils Debian 14, Debian 13, Debian 12 2:5.1-1

debian advisories DEBIAN-CVE-2011-2724

  • samba RHEL 6 3.5.6-86.el6_1.4
  • cifs-utils RHEL 6 4.8.1-2.el6_1.2
  • samba-swat RHEL 6 3.5.6-86.el6_1.4
  • libsmbclient RHEL 6 3.5.6-86.el6_1.4
  • samba-client RHEL 6 3.5.6-86.el6_1.4
  • samba-common RHEL 6 3.5.6-86.el6_1.4
  • samba-winbind RHEL 6 3.5.6-86.el6_1.4
  • samba-domainjoin-gui RHEL 6 3.5.6-86.el6_1.4

red hat advisories RHSA-2011:1221RHSA-2011:1220

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-2724 updated cvss 2.6

cifs-utils: mount.cifs incorrect fix for CVE-2010-0547

  • Red Hat Enterprise Linux 4 samba Red Hat Enterprise Linux 5 samba
    affected: no fix available
  • Red Hat Enterprise Linux (v. 5 server) samba3x 3.5.4-0.83.el5_7.2, samba3x-swat 3.5.4-0.83.el5_7.2, samba3x-client 3.5.4-0.83.el5_7.2, samba3x-common 3.5.4-0.83.el5_7.2, samba3x-winbind 3.5.4-0.83.el5_7.2, samba3x-domainjoin-gui 3.5.4-0.83.el5_7.2 Red Hat Enterprise Linux Desktop (v. 5 client) samba3x 3.5.4-0.83.el5_7.2, samba3x-swat 3.5.4-0.83.el5_7.2, samba3x-client 3.5.4-0.83.el5_7.2, samba3x-common 3.5.4-0.83.el5_7.2, samba3x-winbind 3.5.4-0.83.el5_7.2, samba3x-domainjoin-gui 3.5.4-0.83.el5_7.2
    fixed: vendor fix RHSA-2011:1220
  • Red Hat Enterprise Linux Server (v. 6) samba 3.5.6-86.el6_1.4, cifs-utils 4.8.1-2.el6_1.2, libsmbclient 3.5.6-86.el6_1.4, samba-client 3.5.6-86.el6_1.4, samba-common 3.5.6-86.el6_1.4, samba-winbind 3.5.6-86.el6_1.4, +1 more Red Hat Enterprise Linux Server Optional (v. 6) samba 3.5.6-86.el6_1.4, samba-swat 3.5.6-86.el6_1.4, samba-domainjoin-gui 3.5.6-86.el6_1.4, samba-winbind-krb5-locator 3.5.6-86.el6_1.4
    fixed: vendor fix RHSA-2011:1221
  • Red Hat RHEL Desktop Workstation (v. 5 client) samba3x 3.5.4-0.83.el5_7.2
    fixed: vendor fix RHSA-2011:1220

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 1.2 AV:L/AC:H/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.