CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.1 | $0-$5k | 0.00 |
A vulnerability was found in Samba up to 4.5.14/4.6.10/4.7.2 (File Transfer Software) and classified as problematic. This issue affects some unknown processing. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality. The summary by CVE is:
Samba before 4.7.3 might allow remote attackers to obtain sensitive information by leveraging failure of the server to clear allocated heap memory.
The bug was discovered 11/21/2017. The weakness was disclosed 11/21/2017 by Volker Lendecke (ERNE) with The Samba Team as CVE-2017-15275.html as confirmed advisory (Website). It is possible to read the advisory at samba.org. The public release has been coordinated in cooperation with the project team. The identification of this vulnerability is CVE-2017-15275 since 10/11/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:
All versions of Samba from 3.6.0 onwards are vulnerable to a heap memory information leak, where server allocated heap memory may be returned to the client without being cleared. There is no known vulnerability associated with this error, but uncleared heap memory may contain previously used data that may help an attacker compromise the server via other methods. Uncleared heap memory may potentially contain password hashes or other high-value data.
The vulnerability scanner Nessus provides a plugin with the ID 104843 (RHEL 6 : samba4 (RHSA-2017:3278)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196977 (Ubuntu Security Notification for Samba Vulnerabilities (USN-3486-1)).
Upgrading to version 4.7.3, 4.6.11 or 4.5.15 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (104843). The entry 109786 is pretty similar.
Product
Type
Name
Version
- 4.5.0
- 4.5.1
- 4.5.2
- 4.5.3
- 4.5.4
- 4.5.5
- 4.5.6
- 4.5.7
- 4.5.8
- 4.5.9
- 4.5.10
- 4.5.11
- 4.5.12
- 4.5.13
- 4.5.14
- 4.6.0
- 4.6.1
- 4.6.2
- 4.6.3
- 4.6.4
- 4.6.5
- 4.6.6
- 4.6.7
- 4.6.8
- 4.6.9
- 4.6.10
- 4.7.0
- 4.7.1
- 4.7.2
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 104843
Nessus Name: RHEL 6 : samba4 (RHSA-2017:3278)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 68989
OpenVAS Name: Debian Security Advisory DSA 4043-1 (samba - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Samba 4.7.3/4.6.11/4.5.15
Timeline
10/11/2017 🔍11/21/2017 🔍
11/21/2017 🔍
11/21/2017 🔍
11/21/2017 🔍
11/21/2017 🔍
11/22/2017 🔍
11/27/2017 🔍
11/29/2017 🔍
12/09/2019 🔍
Sources
Product: samba.orgAdvisory: CVE-2017-15275.html
Researcher: Volker Lendecke (ERNE)
Organization: The Samba Team
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2017-15275 (🔍)
OVAL: 🔍
SecurityTracker: 1039855
SecurityFocus: 101908 - Samba CVE-2017-15275 Information Disclosure Vulnerability
See also: 🔍
Entry
Created: 11/22/2017 09:34Updated: 12/09/2019 11:55
Changes: 11/22/2017 09:34 (83), 12/09/2019 11:55 (7)
Complete: 🔍
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