CVE-2012-5671

Impact:
Critical
Public Date:
2012-10-26
CWE:
CWE-122
Bugzilla:
869953: CVE-2012-5671 exim: Heap-buffer overflow in DNS decode logic used for DKIM

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2012-5671 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Not Vulnerable. This issue does not affect the version of exim as shipped with Red Hat Enterprise Linux 5.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 7.5
Base Metrics AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 exim Not affected

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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