| Package | Affected versions | Patched versions |
|---|---|---|
| exim | = 4.70= 4.71= 4.72= 4.73= 4.74= 4.75= 4.76= 4.77= 4.80 |
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.
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