CVE-2017-17688 | BDVDB-2026-100729 Detail
Description#
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
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- https://protonmail.com/blog/pgp-vulnerability-efail
- https://news.ycombinator.com/item?id=17066419
- https://www.patreon.com/posts/cybersecurity-15-18814817
- http://flaked.sockpuppet.org/2018/05/16/a-unified-timeline.html
- http://www.securityfocus.com/bid/104162
- https://lists.gnupg.org/pipermail/gnupg-users/2018-May/060334.html
- https://efail.de
- https://twitter.com/matthew_d_green/status/995996706457243648
- https://www.synology.com/support/security/Synology_SA_18_22
- http://www.securitytracker.com/id/1040904
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.