CVE-2017-2636
CVSS V2 Medium 6.9
CVSS V3 High 7.8
Description
Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline.
Overview
- CVE ID
- CVE-2017-2636
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2017-03-07T22:59:00
- Last Modified Date
- 2023-02-24T18:43:51
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.10.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:M/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 6.9
- Severity
- MEDIUM
- Exploitability Score
- 3.4
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-2636 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2636 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 18:51:44 | Added to TrackCVE | |||
| 2022-12-02 14:29:23 | 2017-03-07T22:59Z | 2017-03-07T22:59:00 | CVE Published Date | updated |
| 2022-12-02 14:29:23 | 2018-01-05T02:31:30 | CVE Modified Date | updated | |
| 2022-12-02 14:29:23 | Modified | Vulnerability Status | updated | |
| 2023-02-02 17:05:55 | 2023-02-02T16:18:14 | CVE Modified Date | updated | |
| 2023-02-02 17:05:55 | Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline. | A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. | Description | updated |
| 2023-02-02 17:05:57 | References | updated | ||
| 2023-02-11 03:06:49 | 2023-02-10T00:55:52 | CVE Modified Date | updated | |
| 2023-02-11 03:06:49 | Modified | Analyzed | Vulnerability Status | updated |
| 2023-02-11 03:06:50 | AV:L/AC:L/Au:N/C:C/I:C/A:C | AV:L/AC:M/Au:N/C:C/I:C/A:C | CVSS V2 vector_string | updated |
| 2023-02-11 03:06:51 | LOW | MEDIUM | CVSS V2 access_complexity | updated |
| 2023-02-11 03:06:51 | 7.2 | 6.9 | CVSS V2 baseScore | updated |
| 2023-02-11 03:06:51 | HIGH | MEDIUM | CVSS V2 baseSeverity | updated |
| 2023-02-11 03:06:51 | 3.9 | 3.4 | CVSS V2 exploitabilityScore | updated |
| 2023-02-13 00:06:07 | 2023-02-12T23:29:37 | CVE Modified Date | updated | |
| 2023-02-13 00:06:07 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-02-13 00:06:08 | A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system. | Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline. | Description | updated |
| 2023-02-23 18:05:54 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-02-24 19:06:02 | 2023-02-24T18:43:51 | CVE Modified Date | updated | |
| 2023-02-24 19:06:02 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |