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CVE-2017-17689

Date: May 16, 2018

The S/MIME specification allows a Cipher Block Chaining (CBC) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL.

Severity Score

5.9

Related Resources (11)

Url: http://www.securityfocus.com/bid/104165

Url: https://security-tracker.debian.org/tracker/CVE-2017-17689

Url: https://nvd.nist.gov/vuln/detail/CVE-2017-17689

Url: https://pastebin.com/gNCc8aYm

Url: https://news.ycombinator.com/item?id=17066419

Url: https://efail.de

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2017-17689

Url: https://twitter.com/matthew_d_green/status/996371541591019520

Url: https://access.redhat.com/security/cve/CVE-2017-17689

Url: https://www.synology.com/support/security/Synology_SA_18_22

Url: https://www.mend.io/vulnerability-database/CVE-2017-17689

Severity Score

5.9

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:	5.9
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

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