CVE-2017-17688 Information

Description

LICENSE README.md cvefilelist cvelist nvdcve nvdpages.sh scripts test-CVE-2017-1882.markdown test-CVE-2017-18822.markdown tmpvendorlinks DISPUTED LICENSE README.md cvefilelist cvelist nvdcve nvdpages.sh scripts test-CVE-2017-1882.markdown test-CVE-2017-18822.markdown tmpvendorlinks 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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

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

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.9