CVE-2011-3585 — Samba mtab lock file race condition

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MEDIUM

Samba mtab lock file race condition

Published Dec 31, 2019

4.7

MEDIUM

CVSS 3.1

EPSS 0.32%

Description

Multiple race conditions in the (1) mount.cifs and (2) umount.cifs programs in Samba 3.6 allow local users to cause a denial of service (mounting outage) via a SIGKILL signal during a time window when the /etc/mtab~ file exists.

Affected products

Vendor Samba Product Samba Default
n/a
- Version
  3.6
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Samba

n/a

Version	Status	Constraints
3.6	affected	-

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 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
Red Hat Enterprise Linux 5

samba3x

Not affected

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 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
Red Hat Enterprise Linux 5	samba3x	Not affected	n/a

Remediation

No remediation recorded yet.

Metrics

0.32% 0.00317

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00317

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 (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.32% (0.00317)	22.31th	v5 (v2026.06.15)
Jun 15, 2026	0.32% (0.00317)	23.18th	v5 (v2026.06.15)
Mar 17, 2025	0.55% (0.00545)	65.79th	v4 (v2025.03.14)
Dec 12, 2024	0.06% (0.00059)	27.10th	v3 (v2023.03.01)
Jun 4, 2024	0.06% (0.00059)	24.99th	v3 (v2023.03.01)
Mar 7, 2023	0.06% (0.00059)	22.97th	v3 (v2023.03.01)
Mar 6, 2023	0.95% (0.00950)	32.28th	v2 (v2022.01.01)
Feb 13, 2023	0.95% (0.00950)	31.86th	v2 (v2022.01.01)
Feb 3, 2023	1.10% (0.01104)	53.31th	v2 (v2022.01.01)
Sep 10, 2022	0.95% (0.00950)	30.63th	v2 (v2022.01.01)
Apr 1, 2022	0.95% (0.00950)	28.61th	v2 (v2022.01.01)
Feb 4, 2022	0.95% (0.00950)	13.46th	v2 (v2022.01.01)

Weaknesses (1)

CWE-362

Race Condition

References (8)

https://access.redhat.com/security/cve/CVE-2011-3585
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=742907
x_refsource_MISCIssue TrackingThird Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=7179
x_refsource_MISCIssue TrackingVendor Advisory
https://git.samba.org/?p=cifs-utils.git%3Ba=commitdiff%3Bh=810f7e4e0f2dbcbee0294d9b371071cb08268200
x_refsource_MISC
https://nvd.nist.gov/vuln/detail/CVE-2011-3585
https://www.cve.org/CVERecord?id=CVE-2011-3585
https://www.openwall.com/lists/oss-security/2011/09/27/1
x_refsource_MISCMailing ListThird Party Advisory
https://www.openwall.com/lists/oss-security/2011/09/30/5
x_refsource_MISCMailing ListThird Party Advisory

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2011-3585		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=742907		x_refsource_MISCIssue TrackingThird Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=7179		x_refsource_MISCIssue TrackingVendor Advisory
https://git.samba.org/?p=cifs-utils.git%3Ba=commitdiff%3Bh=810f7e4e0f2dbcbee0294d9b371071cb08268200		x_refsource_MISC
https://nvd.nist.gov/vuln/detail/CVE-2011-3585
https://www.cve.org/CVERecord?id=CVE-2011-3585
https://www.openwall.com/lists/oss-security/2011/09/27/1		x_refsource_MISCMailing ListThird Party Advisory
https://www.openwall.com/lists/oss-security/2011/09/30/5		x_refsource_MISCMailing ListThird Party Advisory