CVE-2017-16944 Detail

Current Description

The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://openwall.com/lists/oss-security/2017/11/25/1 Mailing List 
http://openwall.com/lists/oss-security/2017/11/25/2 Mailing List 
http://openwall.com/lists/oss-security/2017/11/25/3 Mailing List 
http://www.securitytracker.com/id/1039873 Third Party Advisory  VDB Entry 
https://bugs.exim.org/show_bug.cgi?id=2201 Exploit  Issue Tracking 
https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html Mailing List 
https://www.debian.org/security/2017/dsa-4053 Third Party Advisory 
https://www.exploit-db.com/exploits/43184/ Third Party Advisory  VDB Entry 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') cwe source acceptance level NIST  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-16944
NVD Published Date:
11/25/2017
NVD Last Modified:
10/02/2019
Source:
MITRE