Resource exhaustion in C-ares_project C-ares
CVE-2020-8277
A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denial of Service in versions < 15.2.1, < 14.15.1, and < 12.19.1 by getting the application to resolve a DNS record with a la…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.542 (98.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- C-ares_project C-ares
- Nodejs Node — versions 4.0, 5.0, 6.0
- Nodejs Node.js
- Oracle Blockchain_platform
- Oracle Graalvm — versions 19.3.4, 20.3.0
- Oracle Jd_edwards_enterpriseone_tools
- Oracle Mysql_cluster
- Oracle Retail_xstore_point_of_service — versions 16.0.6, 17.0.4, 18.0.3
- Fedoraproject Fedora — versions 32, 33
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- support@hackerone.com (x_refsource_FEDORA, vendor-advisory)
- support@hackerone.com (x_refsource_FEDORA, vendor-advisory)
- support@hackerone.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- support@hackerone.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (x_refsource_FEDORA, vendor-advisory)
- support@hackerone.com (x_refsource_FEDORA, vendor-advisory)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-8277?
- CVE-2020-8277 is a high-severity vulnerability in C-ares_project C-ares, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-11-19.
- How severe is CVE-2020-8277?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-8277 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.