HIGH
samba: Insufficient symlink verification in smbd
Published Dec 29, 2015
7.2
HIGHCVSS 3.1
EPSS 13.27%
Description
vfs.c in smbd in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3, when share names with certain substring relationships exist, allows remote attackers to bypass intended file-access restrictions via a symlink that points outside of a share.
Affected products
No data.
Configuration 1
Configuration 2
OR
- 12.04
- 14.04
- 15.04
- 15.10
Configuration 3
OR
- 7.0
- 8.0
No data.
Red Hat Enterprise Linux 6
samba-0:3.6.23-24.el6_7
Fixed · RHSA-2016:0011
Red Hat Enterprise Linux 6
samba4-0:4.0.0-67.el6_7.rc4
Fixed · RHSA-2016:0010
Red Hat Enterprise Linux 7
samba-0:4.2.3-11.el7_2
Fixed · RHSA-2016:0006
Red Hat Gluster Storage 3.1 for RHEL 6
samba-0:4.1.17-16.el6rhs
Fixed · RHSA-2016:0015
Red Hat Gluster Storage 3.1 for RHEL 7
samba-0:4.2.4-9.1.el7rhgs
Fixed · RHSA-2016:0016
Red Hat Enterprise Linux 5
samba
Will not fix
Red Hat Enterprise Linux 5
samba3x
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | samba-0:3.6.23-24.el6_7 | Fixed | RHSA-2016:0011 |
| Red Hat Enterprise Linux 6 | samba4-0:4.0.0-67.el6_7.rc4 | Fixed | RHSA-2016:0010 |
| Red Hat Enterprise Linux 7 | samba-0:4.2.3-11.el7_2 | Fixed | RHSA-2016:0006 |
| Red Hat Gluster Storage 3.1 for RHEL 6 | samba-0:4.1.17-16.el6rhs | Fixed | RHSA-2016:0015 |
| Red Hat Gluster Storage 3.1 for RHEL 7 | samba-0:4.2.4-9.1.el7rhgs | Fixed | RHSA-2016:0016 |
| Red Hat Enterprise Linux 5 | samba | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | samba3x | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.2 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
13.27% 0.13274
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.13274
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 (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 13.27% (0.13274) | 96.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 13.27% (0.13274) | 95.88th | v5 (v2026.06.15) |
| Dec 1, 2025 | 17.33% (0.17333) | 94.82th | v4 (v2025.03.14) |
| Nov 30, 2025 | 14.96% (0.14965) | 94.28th | v4 (v2025.03.14) |
| Oct 19, 2025 | 22.58% (0.22577) | 95.57th | v4 (v2025.03.14) |
| Sep 26, 2025 | 24.74% (0.24744) | 95.96th | v4 (v2025.03.14) |
| Aug 31, 2025 | 26.20% (0.26202) | 96.10th | v4 (v2025.03.14) |
| Aug 30, 2025 | 23.96% (0.23957) | 95.81th | v4 (v2025.03.14) |
| Jul 12, 2025 | 16.00% (0.15999) | 94.46th | v4 (v2025.03.14) |
| Jul 2, 2025 | 23.96% (0.23957) | 95.79th | v4 (v2025.03.14) |
| Jun 24, 2025 | 16.00% (0.15999) | 94.43th | v4 (v2025.03.14) |
| Jun 6, 2025 | 14.96% (0.14965) | 94.18th | v4 (v2025.03.14) |
| Mar 30, 2025 | 22.58% (0.22577) | 95.37th | v4 (v2025.03.14) |
| Mar 29, 2025 | 32.17% (0.32171) | 95.03th | v4 (v2025.03.14) |
| Mar 21, 2025 | 22.58% (0.22577) | 95.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 23.96% (0.23957) | 95.58th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.27% (0.01266) | 86.24th | v3 (v2023.03.01) |
| Nov 22, 2023 | 1.27% (0.01266) | 84.12th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.54% (0.01538) | 85.61th | v3 (v2023.03.01) |
| Aug 16, 2023 | 2.65% (0.02653) | 89.02th | v3 (v2023.03.01) |
| Jun 10, 2023 | 2.21% (0.02205) | 87.85th | v3 (v2023.03.01) |
| May 8, 2023 | 2.87% (0.02870) | 89.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.68% (0.06676) | 92.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
References (27)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00002.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00017.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00046.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3433 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html x_refsource_CONFIRMThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/79733 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1034493 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2855-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2855-2 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-5252 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1290288 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=4278ef25f64d5fdbf432ff1534e275416ec9561e x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-5252
- https://security.gentoo.org/glsa/201612-47 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-5252
- https://www.samba.org/samba/security/CVE-2015-5252.html x_refsource_CONFIRMExploitVendor Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 29, 2015
Updated Aug 6, 2024
Reserved Jul 1, 2015
Link CVE-2015-5252
CISA Vulnrichment
Updated n/a