CVE-2015-3238
CVSS V2 Medium 5.8
CVSS V3 Medium 6.5
Description
The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.
Overview
- CVE ID
- CVE-2015-3238
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2015-08-24T14:59:04
- Last Modified Date
- 2023-02-12T23:15:31
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:* | 1 | OR | 1.1.8 | |
| cpe:2.3:a:oracle:sparc-opl_service_processor:*:*:*:*:*:*:*:* | 1 | OR | 1121 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- LOW
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 2.5
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2015-3238 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3238 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:48:46 | Added to TrackCVE | |||
| 2022-12-02 06:06:44 | 2015-08-24T14:59Z | 2015-08-24T14:59:04 | CVE Published Date | updated |
| 2022-12-02 06:06:44 | 2019-01-03T15:01:45 | CVE Modified Date | updated | |
| 2022-12-02 06:06:44 | Modified | Vulnerability Status | updated | |
| 2023-02-02 17:05:09 | 2023-02-02T15:16:40 | CVE Modified Date | updated | |
| 2023-02-02 17:05:09 | The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password. | It was discovered that the _unix_run_helper_binary() function of PAM's unix_pam module could write to a blocking pipe, possibly causing the function to become unresponsive. An attacker able to supply large passwords to the unix_pam module could use this flaw to enumerate valid user accounts, or cause a denial of service on the system. | Description | updated |
| 2023-02-02 17:05:10 | References | updated | ||
| 2023-02-13 01:06:04 | 2023-02-12T23:15:31 | CVE Modified Date | updated | |
| 2023-02-13 01:06:05 | It was discovered that the _unix_run_helper_binary() function of PAM's unix_pam module could write to a blocking pipe, possibly causing the function to become unresponsive. An attacker able to supply large passwords to the unix_pam module could use this flaw to enumerate valid user accounts, or cause a denial of service on the system. | The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password. | Description | updated |