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.
Priority
Medium
CVSS 3 base score: 7.5
Status
| Package | Release | Status |
|---|---|---|
|
c-ares Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(1.16.1-1ubuntu0.1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
Patches: Upstream: https://github.com/c-ares/c-ares/commit/0d252eb3b2147179296a3bdb4ef97883c97c54d3 |
||
Notes
| Author | Note |
|---|---|
| sbeattie | possibly introduced in 7d3591ee8a1a63e7748e68e6d880bd1763a32885 |
| leosilva | introduced in 1.16 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8277
- 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://usn.ubuntu.com/usn/usn-4638-1
- NVD
- Launchpad
- Debian