Twenty Year Anniversary

Debian Security Advisory 4110-1

Debian Security Advisory 4110-1
Posted Feb 11, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4110-1 - Meh Chang discovered a buffer overflow flaw in a utility function used in the SMTP listener of Exim, a mail transport agent. A remote attacker can take advantage of this flaw to cause a denial of service, or potentially the execution of arbitrary code via a specially crafted message.

tags | advisory, remote, denial of service, overflow, arbitrary
systems | linux, debian
advisories | CVE-2018-6789
MD5 | 9bf9a6ae2812c2a0e4e752f35153e3a6

Debian Security Advisory 4110-1

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4110-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 10, 2018 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : exim4
CVE ID : CVE-2018-6789
Debian Bug : 890000

Meh Chang discovered a buffer overflow flaw in a utility function used
in the SMTP listener of Exim, a mail transport agent. A remote attacker
can take advantage of this flaw to cause a denial of service, or
potentially the execution of arbitrary code via a specially crafted
message.

For the oldstable distribution (jessie), this problem has been fixed
in version 4.84.2-2+deb8u5.

For the stable distribution (stretch), this problem has been fixed in
version 4.89-2+deb9u3.

We recommend that you upgrade your exim4 packages.

For the detailed security status of exim4 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/exim4

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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