CVE-2016-3739

Name	CVE-2016-3739
Description	The (1) mbed_connect_step1 function in lib/vtls/mbedtls.c and (2) polarssl_connect_step1 function in lib/vtls/polarssl.c in cURL and libcurl before 7.49.0, when using SSLv3 or making a TLS connection to a URL that uses a numerical IP address, allow remote attackers to spoof servers via an arbitrary valid certificate.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
curl (PTS)	jessie, jessie (lts)	7.38.0-4+deb8u27	vulnerable
	stretch (security)	7.52.1-5+deb9u16	fixed
	stretch (lts), stretch	7.52.1-5+deb9u21	fixed
	buster	7.64.0-4+deb10u2	fixed
	buster (security)	7.64.0-4+deb10u9	fixed
	bullseye (security), bullseye	7.74.0-1.3+deb11u11	fixed
	bookworm (security), bookworm	7.88.1-10+deb12u5	fixed
	trixie	8.5.0-2	fixed
	sid	8.7.1-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
curl	source	(unstable)	7.50.1-1	unimportant

only relevant when built with mbedTLS/PolarSSL
Source-wise fixed in 7.49.0