10

CVE-2020-8794

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Opensmtpd ≫ Opensmtpd Version < 6.6.4
Canonical ≫ Ubuntu Linux Version18.04 SwEditionlts
Canonical ≫ Ubuntu Linux Version19.10
Fedoraproject ≫ Fedora Version31
Fedoraproject ≫ Fedora Version32
Debian ≫ Debian Linux Version9.0
Debian ≫ Debian Linux Version10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 88.54% 0.998
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 10 10 10
AV:N/AC:L/Au:N/C:C/I:C/A:C
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

http://www.openwall.com/lists/oss-security/2021/05/04/7
Third Party Advisory
Exploit
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/
https://www.openbsd.org/security.html
Third Party Advisory
https://usn.ubuntu.com/4294-1/
Patch
Third Party Advisory
http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html
Third Party Advisory
Exploit
VDB Entry
http://seclists.org/fulldisclosure/2020/Feb/32
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2020/02/26/1
Third Party Advisory
Exploit
Mailing List
http://www.openwall.com/lists/oss-security/2020/03/01/1
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2020/03/01/2
Third Party Advisory
Mailing List
https://www.debian.org/security/2020/dsa-4634
Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/02/24/5
Third Party Advisory
Exploit
Mailing List