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CVE-2018-6789

Status Candidate

Overview

An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.

Related Files

Exim base64d Buffer Overflow
Posted Jun 3, 2021
Authored by Johnny Yu | Site github.com

Exim versions prior to 4.90.1 remote buffer overflow proof of concept exploit.

tags | exploit, remote, overflow, proof of concept
advisories | CVE-2018-6789
SHA-256 | ee8228224f1f993d6d2342e211a9be7a153342208313db672c854f83eba4d705
Exim 4.90 Remote Code Execution
Posted Oct 24, 2018
Authored by hackk.gr

Exim version 4.90 remote code execution exploit.

tags | exploit, remote, code execution
advisories | CVE-2018-6789
SHA-256 | 19a743e6423b65998debf24be560524e381d039e1cadcd20d9257dd956d9b4a1
Exim base64d Remote Code Execution
Posted May 3, 2018
Authored by straight_blast

Exim versions prior to 4.90.1 suffer from a base64d remote code execution vulnerability.

tags | exploit, remote, code execution
advisories | CVE-2018-6789
SHA-256 | 7ca9d4d2ad8a8f94f402c2a0986a1bcb33596bff697621e2afcde815f2f4b0d8
Gentoo Linux Security Advisory 201803-01
Posted Mar 6, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201803-1 - Multiple vulnerabilities have been found in Exim, the worst of which allows remote attackers to execute arbitrary code. Versions less than 4.90.1 are affected.

tags | advisory, remote, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2017-16943, CVE-2017-16944, CVE-2018-6789
SHA-256 | fae08f3a967abdc43a1c026ad3ce23d707d739eacf930009ae729881c47b4e5c
Ubuntu Security Notice USN-3565-1
Posted Feb 12, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3565-1 - Meh Chang discovered that Exim incorrectly handled memory in certain decoding operations. A remote attacker could use this issue to cause Exim to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-6789
SHA-256 | af6290b7d81b5f37c8718f3ea211ac9f5fe0e3ba2706920599cde51286c5524b
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
SHA-256 | 177e2fda59e9e6ba3a12f1c8d564ad42a8ca0e3bef74df674862b69bd02f1f54
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