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| Rule General Information |
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| Release Date: | 2020-06-10 | |
| Rule Name: | OpenSMTPD mta_io Out Of Bounds Read Command Injection Vulnerability (CVE-2020-8794) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| Description: | OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling. | |
| Impact: | An attacker can execute arbitrary command via a successful exploit in the context of the vulnerable software. | |
| Affected OS: | Windows, Linux, Others | |
| Reference: | http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html http://seclists.org/fulldisclosure/2020/Feb/32 http://www.openwall.com/lists/oss-security/2020/02/26/1 http://www.openwall.com/lists/oss-security/2020/03/01/1 |
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| Solutions |
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| The vendors have released upgrade patches to fix vulnerabilities, please visit: https://www.opensmtpd.org/ |