CVE-2018-6789
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.6 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.968 High
EPSS
Percentile
99.7%
An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.
References
openwall.com/lists/oss-security/2018/02/10/2
packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html
www.openwall.com/lists/oss-security/2018/02/07/2
www.securityfocus.com/bid/103049
www.securitytracker.com/id/1040461
devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/
exim.org/static/doc/security/CVE-2018-6789.txt
git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1
lists.debian.org/debian-lts-announce/2018/02/msg00009.html
usn.ubuntu.com/3565-1/
www.debian.org/security/2018/dsa-4110
www.exploit-db.com/exploits/44571/
www.exploit-db.com/exploits/45671/
Social References
More
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.6 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.968 High
EPSS
Percentile
99.7%