CVE-2012-5671

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Summary

CVECVE-2012-5671
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-10-31 16:55:06 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionHeap-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.

Risk And Classification

Primary CVSS: v2.0 6.8 from [email protected]

AV:N/AC:M/Au:N/C:P/I:P/A:P

Problem Types: CWE-119 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:M/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Exim Exim 4.70 All All All
Application Exim Exim 4.71 All All All
Application Exim Exim 4.72 All All All
Application Exim Exim 4.73 All All All
Application Exim Exim 4.74 All All All
Application Exim Exim 4.75 All All All
Application Exim Exim 4.76 All All All
Application Exim Exim 4.77 All All All
Application Exim Exim 4.80 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] Fedora 17 Update: exim-4.76-9.fc17 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[security-announce] openSUSE-SU-2012:1404-1: critical: exim: overflow in af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[exim-announce] Exim 4.80.1 Security Release af854a3a-2127-422b-91ae-364da2661108 lists.exim.org
[SECURITY] Fedora 18 Update: exim-4.80.1-1.fc18 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Exim DKIM DNS Decoding CVE-2012-5671 Remote Buffer Overflow Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
USN-1618-1: Exim vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com
[SECURITY] Fedora 16 Update: exim-4.76-4.fc16.2 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
osvdb.org/86616 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
Debian -- Security Information -- DSA-2566-1 exim4 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
oss-security - CVE-2012-5671: Exim <= 4.80 DKIM heap-based buffer overflow af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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