Vulnerability Monitor

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CVE-2019-20922

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.

Published

2020-09-30T18:15:18.100

Last Modified

2024-11-21T04:39:41.877

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-400

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	handlebarsjs	handlebars	< 4.4.5	Yes

References

https://github.com/handlebars-lang/handlebars.js/commit/8d5530ee2c3ea9f0aee3fde310b9f36887d00b8b Patch, Third Party Advisory ([email protected])
https://snyk.io/vuln/SNYK-JS-HANDLEBARS-480388 Third Party Advisory ([email protected])
https://www.npmjs.com/advisories/1300 Third Party Advisory ([email protected])
https://github.com/handlebars-lang/handlebars.js/commit/8d5530ee2c3ea9f0aee3fde310b9f36887d00b8b Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://snyk.io/vuln/SNYK-JS-HANDLEBARS-480388 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.npmjs.com/advisories/1300 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)