CVE-2018-20821
CVSS V2 Medium 4.3
CVSS V3 Medium 6.5
Description
The parsing component in LibSass through 3.5.5 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass::Parser::parse_css_variable_value in parser.cpp).
Overview
- CVE ID
- CVE-2018-20821
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-04-23T14:29:00
- Last Modified Date
- 2023-02-28T20:46:37
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:sass-lang:libsass:*:*:*:*:*:*:*:* | 1 | OR | 3.5.5 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/sass/libsass/issues/2658 | Exploit Patch Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html | |
| http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html | |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-20821 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20821 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:30:56 | Added to TrackCVE | |||
| 2022-12-03 19:51:55 | 2019-04-23T14:29Z | 2019-04-23T14:29:00 | CVE Published Date | updated |
| 2022-12-03 19:51:55 | 2020-08-24T17:37:01 | CVE Modified Date | updated | |
| 2022-12-03 19:51:55 | Modified | Vulnerability Status | updated | |
| 2022-12-29 13:08:40 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-02-28 21:08:52 | 2023-02-28T20:46:37 | CVE Modified Date | updated | |
| 2023-02-28 21:08:52 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |