CVE-2020-8277
Published: 17 November 2020
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 larger number of responses. This is fixed in 15.2.1, 14.15.1, and 12.19.1.
Notes
| Author | Note |
|---|---|
| sbeattie | possibly introduced in 7d3591ee8a1a63e7748e68e6d880bd1763a32885 |
| leosilva | introduced in 1.16 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
c-ares Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Not vulnerable
|
|
| groovy |
Released
(1.16.1-1ubuntu0.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
|
|
|
Patches: upstream: https://github.com/c-ares/c-ares/commit/0d252eb3b2147179296a3bdb4ef97883c97c54d3 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- https://nodejs.org/en/blog/vulnerability/november-2020-security-releases/#denial-of-service-through-dns-request-cve-2020-8277
- https://github.com/c-ares/c-ares/commit/0d252eb3b2147179296a3bdb4ef97883c97c54d3
- https://ubuntu.com/security/notices/USN-4638-1
- https://www.cve.org/CVERecord?id=CVE-2020-8277
- NVD
- Launchpad
- Debian