CVE-2012-5671
exim4 - heap overflow
EPSS 31.6%
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.
How to fix CVE-2012-5671
To remediate CVE-2012-5671, upgrade the affected package to a fixed version below.
- Debian/exim4—upgrade to 4.80-5.1 or later
- Debian/exim4—upgrade to 4.72-6+squeeze3 or later
Is CVE-2012-5671 being exploited?
Moderate — EPSS is 31.6%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 4.80-5.1
- from 0, < 4.72-6+squeeze3