CVE - CVE-2020-8794

CVE-ID
CVE-2020-8794	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
DEBIAN:DSA-4634 URL:https://www.debian.org/security/2020/dsa-4634 FEDORA:FEDORA-2020-b92d7083ca URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/ FULLDISC:20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) URL:http://seclists.org/fulldisclosure/2020/Feb/32 MISC:http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html MISC:https://www.openbsd.org/security.html MISC:https://www.openwall.com/lists/oss-security/2020/02/24/5 MLIST:[oss-security] 20200226 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) URL:http://www.openwall.com/lists/oss-security/2020/02/26/1 MLIST:[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) URL:http://www.openwall.com/lists/oss-security/2020/03/01/1 MLIST:[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) URL:http://www.openwall.com/lists/oss-security/2020/03/01/2 MLIST:[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim URL:http://www.openwall.com/lists/oss-security/2021/05/04/7 UBUNTU:USN-4294-1 URL:https://usn.ubuntu.com/4294-1/
Assigning CNA
MITRE Corporation
Date Record Created
20200207	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20200207)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is a record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)