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CVE-2011-1764

Status Candidate

Overview

Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.

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
SHA-256 | e3a4e4748cd68f2fd685d0f69f6b2dbf2c95867f71a5d365a61fe7544703c801
Ubuntu Security Notice USN-1130-1
Posted May 11, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1130-1 - It was discovered that the Exim daemon did not correctly handle format strings in DKIM headers. An unauthenticated remote attacker could send specially crafted email to run arbitrary code as the Exim user. The default compiler options for affected releases reduces the vulnerability to a denial of service under most conditions.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2011-1764
SHA-256 | 3037bb70653b99b21255af3b8be8ffae564bb7e2b421a31e267cae2653998bbb
Debian Security Advisory 2232-1
Posted May 6, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2232-1 - It was discovered that Exim, the default mail transport agent in Debian, uses DKIM data obtain from DNS directly in a format string, potentially allowing malicious mail senders to execute arbitrary code.

tags | advisory, arbitrary
systems | linux, debian
advisories | CVE-2011-1764
SHA-256 | d90758ba3dc769c7d515058e5d8b8b70e63799f88587ff97e88cad0ac9feeede
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