Vulnerability Name: | CVE-2019-20922 (CCN-170971) |
Assigned: | 2019-11-04 |
Published: | 2019-11-04 |
Updated: | 2021-07-21 |
Summary: | Handlebars before 4.4.5 allows Regular Expression Denial of Service (ReDoS) because of eager matching. The parser may be forced into an endless loop while processing crafted templates. This may allow attackers to exhaust system resources.
|
CVSS v3 Severity: | 7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) 6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)Exploitability Metrics: | Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None | Scope: | Scope (S): Unchanged
| Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): High | 7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) 6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)Exploitability Metrics: | Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None | Scope: | Scope (S): Unchanged
| Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): High |
|
CVSS v2 Severity: | 7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)Exploitability Metrics: | Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None | Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): Complete | 7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)Exploitability Metrics: | Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
| Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): Complete |
|
Vulnerability Type: | CWE-835
|
Vulnerability Consequences: | Denial of Service |
References: | Source: XF Type: UNKNOWN nodejs-handlebars-dos(170971)
|
BACK |