Unrated severityNVD Advisory· Published Oct 31, 2012· Updated Jun 16, 2026
CVE-2012-5671
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*+ 9 more
- cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.71:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.72:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.73:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.74:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.75:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.76:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.77:*:*:*:*:*:*:*
- cpe:2.3:a:exim:exim:4.80:*:*:*:*:*:*:*
- (no CPE)range: >=4.70 <=4.80
Patches
Vulnerability mechanics
References
15- secunia.com/advisories/51098nvdVendor Advisory
- lists.fedoraproject.org/pipermail/package-announce/2012-November/091664.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2012-October/090900.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2012-October/090963.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2012-10/msg00018.htmlnvd
- osvdb.org/86616nvd
- secunia.com/advisories/51115nvd
- secunia.com/advisories/51153nvd
- secunia.com/advisories/51155nvd
- www.debian.org/security/2012/dsa-2566nvd
- www.openwall.com/lists/oss-security/2012/10/26/5nvd
- www.securityfocus.com/bid/56285nvd
- www.ubuntu.com/usn/USN-1618-1nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/79615nvd
- lists.exim.org/lurker/message/20121026.080330.74b9147b.en.htmlnvd
News mentions
0No linked articles in our index yet.