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CVE-2012-5671

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 201401-32
Posted Jan 27, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201401-32 - Multiple vulnerabilities were found in Exim, the worst of which leading to remote execution of arbitrary code with root privileges. Versions less than 4.80.1 are affected.

tags | advisory, remote, arbitrary, root, vulnerability
systems | linux, gentoo
advisories | CVE-2010-2023, CVE-2010-2024, CVE-2010-4344, CVE-2010-4345, CVE-2011-0017, CVE-2011-1407, CVE-2011-1764, CVE-2012-5671
MD5 | 86774c961d131435e18c1dbf719ed5d0
Debian Security Advisory 2566-1
Posted Oct 26, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2566-1 - It was discovered that Exim, a mail transport agent, is not properly handling the decoding of DNS records for DKIM. Specifically, crafted records can yield to a heap-based buffer overflow. An attacker can exploit this flaw to execute arbitrary code.

tags | advisory, overflow, arbitrary
systems | linux, debian
advisories | CVE-2012-5671
MD5 | d4a5988c777d484323b3e4f49bc19679
Ubuntu Security Notice USN-1618-1
Posted Oct 26, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1618-1 - It was discovered that Exim incorrectly handled DKIM DNS decoding. This flaw could allow a remote attacker to execute arbitrary code.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2012-5671
MD5 | 62d0872d7d7c4bff07d7ab020ca6d379
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