National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-17688 Detail

Current Description

** DISPUTED ** The OpenPGP specification allows a Cipher Feedback Mode (CFB) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. NOTE: third parties report that this is a problem in applications that mishandle the Modification Detection Code (MDC) feature or accept an obsolete packet type, not a problem in the OpenPGP specification.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.9 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://flaked.sockpuppet.org/2018/05/16/a-unified-timeline.html Third Party Advisory
http://www.securityfocus.com/bid/104162 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040904 Third Party Advisory VDB Entry
https://efail.de Exploit Mitigation Third Party Advisory
https://lists.gnupg.org/pipermail/gnupg-users/2018-May/060334.html Third Party Advisory
https://news.ycombinator.com/item?id=17066419 Issue Tracking Third Party Advisory
https://protonmail.com/blog/pgp-vulnerability-efail Issue Tracking Third Party Advisory
https://twitter.com/matthew_d_green/status/995996706457243648 Third Party Advisory
https://www.patreon.com/posts/cybersecurity-15-18814817 Issue Tracking Third Party Advisory
https://www.synology.com/support/security/Synology_SA_18_22 Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information NIST  

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:apple:mail:-
     Show Matching CPE(s)
 cpe:/a:apple:mail:-::~~~iphone_os~~
     Show Matching CPE(s)
 cpe:/a:bloop:airmail:-
     Show Matching CPE(s)
 cpe:/a:emclient:emclient:-
     Show Matching CPE(s)
 cpe:/a:flipdogsolutions:maildroid:-
     Show Matching CPE(s)
 cpe:/a:freron:mailmate:-
     Show Matching CPE(s)
 cpe:/a:horde:horde_imp:-
     Show Matching CPE(s)
 cpe:/a:microsoft:outlook:2007
     Show Matching CPE(s)
 cpe:/a:mozilla:thunderbird:-
     Show Matching CPE(s)
 cpe:/a:postbox-inc:postbox:-
     Show Matching CPE(s)
 cpe:/a:r2mail2:r2mail2:-
     Show Matching CPE(s)
 cpe:/a:roundcube:webmail:-
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-17688
NVD Published Date:
05/16/2018
NVD Last Modified:
10/02/2019