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Debian Security Advisory DSA-3517-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
March 14, 2016                        https://www.debian.org/security/faq
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Package        : exim4
CVE ID         : CVE-2016-1531

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.

More information can be found in the upstream advisory at
https://www.exim.org/static/doc/CVE-2016-1531.txt

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.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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