CVE-2018-20679
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.
Overview
- CVE ID
- CVE-2018-20679
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2019-01-09T16:29:00
- Last Modified Date
- 2019-09-04T23:15:12
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:* | 1 | OR | 1.30.0 | |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c | Patch Third Party Advisory |
| https://busybox.net/news.html | Release Notes Third Party Advisory |
| https://bugs.busybox.net/show_bug.cgi?id=11506 | Issue Tracking Exploit Third Party Advisory |
| https://usn.ubuntu.com/3935-1/ | Third Party Advisory |
| http://seclists.org/fulldisclosure/2019/Sep/7 | |
| https://seclists.org/bugtraq/2019/Sep/7 | |
| http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-20679 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20679 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:46:53 | Added to TrackCVE | |||
| 2022-12-03 16:06:07 | 2019-01-09T16:29Z | 2019-01-09T16:29:00 | CVE Published Date | updated |
| 2022-12-03 16:06:07 | 2019-09-04T23:15:12 | CVE Modified Date | updated | |
| 2022-12-03 16:06:07 | Modified | Vulnerability Status | updated |