Attacker Value
Unknown
CVE-2018-6789
CVE-2018-6789
(Last updated October 06, 2023) ▾
MITRE ATT&CK
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Description
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.
Add Assessment
1
Technical Analysis
This is now supposedly being exploited in the wild by Chinese state actors according to this NSA announcement: https://media.defense.gov/2020/Oct/20/2002519884/-1/-1/0/CSA_CHINESE_EXPLOIT_VULNERABILITIES_UOO179811.PDF
CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
9.8 Critical
Impact Score:
5.9
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Vendors
- canonical,
- debian,
- exim
Products
- debian linux 7.0,
- debian linux 8.0,
- debian linux 9.0,
- exim,
- ubuntu linux 14.04,
- ubuntu linux 16.04,
- ubuntu linux 17.10
References
Advisory
