CVE-2012-5671

Name	CVE-2012-5671
Description	Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to "warn control = dkim_disable_verify," allows remote attackers to execute arbitrary code via an email from a malicious DNS server.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-2566-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
exim4 (PTS)	jessie, jessie (lts)	4.84.2-2+deb8u12	fixed
	stretch (security)	4.89-2+deb9u8	fixed
	stretch (lts), stretch	4.89-2+deb9u13	fixed
	buster, buster (lts)	4.92-8+deb10u10	fixed
	buster (security)	4.92-8+deb10u9	fixed
	bullseye	4.94.2-7+deb11u3	fixed
	bullseye (security)	4.94.2-7+deb11u4	fixed
	bookworm	4.96-15+deb12u6	fixed
	bookworm (security)	4.96-15+deb12u5	fixed
	sid, trixie	4.98-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
exim4	source	squeeze	4.72-6+squeeze3		DSA-2566-1
exim4	source	(unstable)	4.80-5.1	medium