[Buildroot] [PATCH] package/nodejs: security bump to version v12.21.0

[Peter Korsgaard <peter@korsgaard.com>]

>>>>> "Peter" == Peter Korsgaard <peter@korsgaard.com> writes:

 >> Fixes the following security issues:
 >> CVE-2021-22883: HTTP2 'unknownProtocol' cause Denial of Service by resource exhaustion

 >> Affected Node.js versions are vulnerable to denial of service attacks when
 >> too many connection attempts with an 'unknownProtocol' are established.
 >> This leads to a leak of file descriptors.  If a file descriptor limit is
 >> configured on the system, then the server is unable to accept new
 >> connections and prevent the process also from opening, e.g.  a file.  If no
 >> file descriptor limit is configured, then this lead to an excessive memory
 >> usage and cause the system to run out of memory.

 >> CVE-2021-22884: DNS rebinding in --inspect

 >> Affected Node.js versions are vulnerable to denial of service attacks when
 >> the whitelist includes ?localhost6?.  When ?localhost6? is not present in
 >> /etc/hosts, it is just an ordinary domain that is resolved via DNS, i.e.,
 >> over network.  If the attacker controls the victim's DNS server or can spoof
 >> its responses, the DNS rebinding protection can be bypassed by using the
 >> ?localhost6? domain.  As long as the attacker uses the ?localhost6? domain,
 >> they can still apply the attack described in CVE-2018-7160.

 >> For more details, see the advisory:
 >> https://nodejs.org/en/blog/vulnerability/february-2021-security-releases/

 >> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Committed to 2020.02.x and 2020.11.x, thanks.

-- 
Bye, Peter Korsgaard