privoxy -- multiple vulnerabilities

Privoxy Developers reports:

Fixed a memory leak when rejecting client connections due to the
socket limit being reached (CID 66382). This affected Privoxy 3.0.21
when compiled with IPv6 support (on most platforms this is the
default).
Fixed an immediate-use-after-free bug (CID 66394) and two
additional unconfirmed use-after-free complaints made by Coverity
scan (CID 66391, CID 66376).

MITRE reports:

Privoxy before 3.0.22 allows remote attackers to cause a denial
of service (file descriptor consumption) via unspecified vectors.