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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:127553
[Rus]
Version
2
Class
patch
ALTXid
317667
Language
English
Severity
Critical
Title
DSA-4634-1 -- opensmtpd -- security update
Description
Qualys discovered that the OpenSMTPD SMTP server performed insufficient validation of SMTP commands, which could result in local privilege escalation or the execution of arbitrary code.
Family
unix
Platform
Debian 10
Debian 9
Product
opensmtpd
Reference
VENDOR: DSA-4634-1
VENDOR: DSA-4634-1
Id:
DSA-4634-1
Reference:
https://www.debian.org/security/dsa-4634
CVE: CVE-2020-8794
CVE: CVE-2020-8794
Id:
CVE-2020-8794
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8794
Comment
: 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.
CVSSv2 Score:
10
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSSv3 Score:
9.8
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
125 (Out-of-bounds Read)
References:
https://www.openbsd.org/security.html (MISC)
https://www.openwall.com/lists/oss-security/2020/02/24/5 (MISC)
[oss-security] 20200226 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) (MLIST)
DSA-4634 (DEBIAN)
20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) (FULLDISC)
[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) (MLIST)
[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794) (MLIST)
http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html (MISC)
USN-4294-1 (UBUNTU)
[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim (MLIST)
FEDORA-2020-b92d7083ca ()
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