| Vulnerability Name: | CVE-2020-8794 (CCN-176751) | ||||||||||||
| Assigned: | 2020-02-25 | ||||||||||||
| Published: | 2020-02-25 | ||||||||||||
| Updated: | 2022-10-08 | ||||||||||||
| Summary: | 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. | ||||||||||||
| CVSS v3 Severity: | 9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) 9.1 Critical (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C)
9.1 Critical (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C)
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| CVSS v2 Severity: | 10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
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| Vulnerability Type: | CWE-125 | ||||||||||||
| Vulnerability Consequences: | Gain Access | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2020-8794 Source: MISC Type: Exploit, Third Party Advisory, VDB Entry http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html Source: FULLDISC Type: Mailing List, Third Party Advisory 20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) Source: MLIST Type: Exploit, Mailing List, Third Party Advisory [oss-security] 20200226 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) Source: MLIST Type: Mailing List, Third Party Advisory [oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) Source: MLIST Type: Mailing List, Third Party Advisory [oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) Source: MLIST Type: Exploit, Mailing List, Third Party Advisory [oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim Source: XF Type: UNKNOWN opensmtpd-cve20208794-command-exec(176751) Source: FEDORA Type: Mailing List, Patch, Third Party Advisory FEDORA-2020-b92d7083ca Source: CCN Type: Packet Storm Security [02-25-2020] OpenSMTPD Out-Of-Bounds Read Source: CCN Type: Packet Storm Security [03-05-2020] OpenSMTPD Out-Of-Bounds Read / Local Privilege Escalation Source: UBUNTU Type: Patch, Third Party Advisory USN-4294-1 Source: DEBIAN Type: Third Party Advisory DSA-4634 Source: EXPLOIT-DB Type: EXPLOIT Offensive Security Exploit Database [03-09-2020] Source: MISC Type: Third Party Advisory https://www.openbsd.org/security.html Source: CCN Type: OpenSMTPD Web site OpenSMTPD Source: MISC Type: Exploit, Mailing List, Third Party Advisory https://www.openwall.com/lists/oss-security/2020/02/24/5 Source: CCN Type: WhiteSource Vulnerability Database CVE-2020-8794 | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration 2: Configuration 3: Configuration 4: Configuration CCN 1:  Denotes that component is vulnerable | ||||||||||||
| Oval Definitions | |||||||||||||
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