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Debian Security Advisory DSA 3517-1 (exim4 - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.9

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

8 months ago

Summary

A local root privilege escalation vulnerability was found in Exim, Debian's default mail transfer agent, in configurations using the perl_startup option (Only Exim via exim4-daemon-heavy enables Perl support). To address the vulnerability, updated Exim versions clean the complete execution environment by default, affecting Exim and subprocesses such as transports calling other programs, and thus may break existing installations. New configuration options (keep_environment, add_environment) were introduced to adjust this behavior.

Affected Software

Affected Software

exim4 on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the oldstable distribution (wheezy), this problem has been fixed in version 4.80-7+deb7u2. For the stable distribution (jessie), this problem has been fixed in version 4.84.2-1. For the testing distribution (stretch), this problem has been fixed in version 4.86.2-1. For the unstable distribution (sid), this problem has been fixed in version 4.86.2-1. We recommend that you upgrade your exim4 packages.

Common Vulnerabilities and Exposures (CVE)