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.
Published 2012-10-31 16:55:07
Updated 2017-08-29 01:32:44
Source MITRE
View at NVD,   CVE.org
Vulnerability category: OverflowExecute code

Threat overview for CVE-2012-5671

Top countries where our scanners detected CVE-2012-5671
Top open port discovered on systems with this issue 80
IPs affected by CVE-2012-5671 1,615
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2012-5671!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2012-5671

70.17%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 98 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2012-5671

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
NIST

CWE ids for CVE-2012-5671

  • The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2012-5671

Products affected by CVE-2012-5671

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