Security
Security
A Denial of Service vulnerability was discovered in c-ares.
| Package | net-dns/c-ares on all architectures |
|---|---|
| Affected versions | < 1.17.1 |
| Unaffected versions | >= 1.17.1 |
c-ares is an asynchronous resolver library.
It was discovered that c-ares incorrectly handled certain DNS requests.
A remote attacker, able to trigger a DNS request for a host of their choice by an application linked against c-ares, could possibly cause a Denial of Service condition.
There is no known workaround at this time.
All c-ares users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/c-ares-1.17.1"
Release date
December 23, 2020
Latest revision
December 23, 2020: 1
Severity
low
Exploitable
local, remote
Bugzilla entries