CVE-2017-16943 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 execute arbitrary code or cause a denial of service (use-after-free) via vectors involving BDAT commands.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  9.8 CRITICAL
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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/1039872 Third Party Advisory  VDB Entry 
https://bugs.exim.org/show_bug.cgi?id=2199 Exploit  Issue Tracking 
https://git.exim.org/exim.git/commit/4090d62a4b25782129cc1643596dc2f6e8f63bde Patch 
https://git.exim.org/exim.git/commitdiff/4e6ae6235c68de243b1c2419027472d7659aa2b4 Patch 
https://github.com/LetUsFsck/PoC-Exploit-Mirror/tree/master/CVE-2017-16944 Exploit 
https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html Mailing List 
https://www.debian.org/security/2017/dsa-4053 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-16943
NVD Published Date:
11/25/2017
NVD Last Modified:
08/02/2019
Source:
MITRE