Vulnerability CVE-2017-17688

Vulnerability Name:

CVE-2017-17688 (CCN-143326)

Assigned:

2017-12-15

Published:

2018-05-14

Updated:

2019-10-03

Summary:

** 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.

CVSS v3 Severity:

5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

4.9 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:C/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): High Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2017-17688

Source: MISC
Type: Third Party Advisory
http://flaked.sockpuppet.org/2018/05/16/a-unified-timeline.html

Source: CCN
Type: US-CERT VU#122919
OpenPGP and S/MIME mail client vulnerabilities

Source: BID
Type: Third Party Advisory, VDB Entry
104162

Source: CCN
Type: BID-104162
OpenPGP CVE-2017-17688 Man In The Middle Information Disclosure Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040904

Source: CCN
Type: Red Hat Bugzilla Bug 1577906
(CVE-2017-17688) CVE-2017-17688 OpenPGP: CFB gadget attacks allows to exfiltrate plaintext out of encrypted emails

Source: MISC
Type: Exploit, Mitigation, Third Party Advisory
https://efail.de

Source: CCN
Type: EFAIL Web site
EFAIL

Source: XF
Type: UNKNOWN
openpgp-cve201717688-info-disc(143326)

Source: MISC
Type: Third Party Advisory
https://lists.gnupg.org/pipermail/gnupg-users/2018-May/060334.html

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://news.ycombinator.com/item?id=17066419

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://protonmail.com/blog/pgp-vulnerability-efail

Source: MISC
Type: Third Party Advisory
https://twitter.com/matthew_d_green/status/995996706457243648

Source: CCN
Type: OpenPGP Web site
OpenPGP

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://www.patreon.com/posts/cybersecurity-15-18814817

Source: CONFIRM
Type: Third Party Advisory
https://www.synology.com/support/security/Synology_SA_18_22

Vulnerable Configuration:

Configuration 1:

cpe:/a:apple:mail:-:*:*:*:*:*:*:*

OR cpe:/a:apple:mail:-:*:*:*:*:iphone_os:*:*

OR cpe:/a:bloop:airmail:-:*:*:*:*:*:*:*

OR cpe:/a:emclient:emclient:-:*:*:*:*:*:*:*

OR cpe:/a:flipdogsolutions:maildroid:-:*:*:*:*:*:*:*

OR cpe:/a:freron:mailmate:-:*:*:*:*:*:*:*

OR cpe:/a:horde:horde_imp:-:*:*:*:*:*:*:*

OR cpe:/a:microsoft:outlook:2007:*:*:*:*:*:*:*

OR cpe:/a:mozilla:thunderbird:-:*:*:*:*:*:*:*

OR cpe:/a:postbox-inc:postbox:-:*:*:*:*:*:*:*

OR cpe:/a:r2mail2:r2mail2:-:*:*:*:*:*:*:*

OR cpe:/a:roundcube:webmail:-:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:microsoft:outlook:2007:*:*:*:*:*:*:*

OR cpe:/a:apple:mail:*:*:*:*:*:*:*:*

OR cpe:/a:mozilla:thunderbird:16.0:*:*:*:*:*:*:*

OR cpe:/a:mozilla:thunderbird:24.0:*:*:*:*:*:*:*

OR cpe:/a:mozilla:thunderbird:17.0:*:*:*:*:*:*:*

OR cpe:/a:mozilla:thunderbird:45.5.0:*:*:*:*:*:*:*

OR cpe:/a:mozilla:thunderbird:52.5.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:654	P	Security update for go1.18 (Important) (in QA)	2022-10-05
oval:org.opensuse.security:def:201717688	V	CVE-2017-17688	2022-09-02
oval:org.opensuse.security:def:3553	P	libXRes1-1.0.7-3.53 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:1702	P	Security update for salt (Important)	2022-06-24
oval:org.opensuse.security:def:95183	P	enigmail-2.2.4-3.27.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:112190	P	enigmail-2.2.4-1.4 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:105722	P	Security update for apache2 (Important) (in QA)	2022-01-10
oval:org.opensuse.security:def:1146	P	Security update for log4j12 (Important)	2021-12-17
oval:org.opensuse.security:def:1741	P	Security update for the Linux Kernel (Important)	2021-11-11
oval:org.opensuse.security:def:66942	P	Security update for the Linux Kernel (Important)	2021-10-12
oval:org.opensuse.security:def:64774	P	Security update for curl (Moderate)	2021-10-06
oval:org.opensuse.security:def:1782	P	Security update for ffmpeg (Moderate)	2021-10-06
oval:org.opensuse.security:def:70298	P	Security update for grilo (Important)	2021-10-06
oval:org.opensuse.security:def:71361	P	perl-5.26.1-7.6.1 on GA media (Moderate)	2021-09-21
oval:org.opensuse.security:def:47682	P	libXrandr2-1.5.0-6.2 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47628	P	gpg2-2.0.24-9.3.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48089	P	libXvnc1-1.6.0-22.7.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47803	P	libvirglrenderer0-0.5.0-11.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48181	P	libpython3_4m1_0-3.4.6-25.29.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47996	P	dracut-044.2-15.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47667	P	libQt5Concurrent5-5.6.2-6.12.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48329	P	ucode-intel-20191112-1.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48128	P	libipa_hbac0-1.16.1-4.17.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:48220	P	libvpx1-1.3.0-3.3.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47629	P	gpgme-1.5.1-1.11 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47643	P	hplip-3.16.11-1.33 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47764	P	libpng12-0-1.2.50-19.1 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47668	P	libQt5WebKit5-5.6.2-1.31 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:47957	P	augeas-1.10.1-2.6 on GA media (Moderate)	2021-08-16
oval:org.opensuse.security:def:1107	P	libpcre2-16-0-10.31-1.14 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:101029	P	opie-32bit-2.4-1.96 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:68021	P	Security update for the Linux Kernel (Important)	2021-07-21
oval:org.opensuse.security:def:66850	P	Security update for qemu (Moderate)	2021-06-30
oval:org.opensuse.security:def:63533	P	enigmail-2.0.5-1.2 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48689	P	libpolkit0-32bit-0.112-2.189 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:2444	P	enigmail-2.0.5-1.2 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48754	P	pulseaudio-module-bluetooth-5.0-2.7 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48785	P	libIlmImf-Imf_2_1-21-32bit-2.1.0-4.5 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48728	P	kernel-default-extra-3.12.49-11.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48543	P	libpython3_4m1_0-3.4.1-12.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48856	P	libid3tag0-0.15.1b-182.58 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48793	P	libmysqlclient_r18-10.0.27-12.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48627	P	stunnel-5.00-3.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48368	P	apache2-2.4.23-14.7 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48824	P	bash-lang-4.3-82.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48582	P	openslp-2.0.0-11.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48895	P	bogofilter-1.2.4-5.3 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:48666	P	cyrus-sasl-digestmd5-32bit-2.1.26-7.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:73633	P	Security update for python-httplib2 (Moderate)	2021-05-31
oval:org.opensuse.security:def:64687	P	Security update for dtc (Low)	2021-05-13
oval:org.opensuse.security:def:71474	P	ecryptfs-utils-111-2.31 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:94316	P	enigmail-2.1.5-3.22.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63572	P	enigmail-2.0.9-3.13.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:2483	P	enigmail-2.0.9-3.13.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:117210	P	enigmail-2.1.5-3.22.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63613	P	enigmail-2.1.5-3.22.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:103756	P	enigmail-2.0.9-3.13.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:2524	P	enigmail-2.1.5-3.22.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:90101	P	enigmail-2.0.9-3.13.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:107695	P	enigmail-2.1.5-3.22.1 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:25732	P	Security update for qemu (Important)	2020-12-01
oval:org.opensuse.security:def:25605	P	Security update for MozillaFirefox (Moderate)	2020-12-01
oval:org.opensuse.security:def:25441	P	Security update for dhcp (Moderate)	2020-12-01
oval:org.opensuse.security:def:50089	P	postgresql-contrib on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25746	P	Security update for openssl-1_1 (Moderate)	2020-12-01
oval:org.opensuse.security:def:24989	P	Security update for bzip2 (Important)	2020-12-01
oval:org.opensuse.security:def:50143	P	enigmail on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25017	P	Security update for ceph (Moderate)	2020-12-01
oval:org.opensuse.security:def:25591	P	Security update for python (Moderate)	2020-12-01
oval:org.opensuse.security:def:25790	P	Security update for flash-player (Important)	2020-12-01
oval:org.opensuse.security:def:25053	P	Security update for libunwind (Moderate)	2020-12-01
oval:org.opensuse.security:def:25644	P	Security update for taglib (Low)	2020-12-01
oval:org.opensuse.security:def:50128	P	apache2-mod_php7 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73515	P	nasm on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25180	P	Security update for file-roller (Moderate)	2020-12-01
oval:org.opensuse.security:def:25028	P	Security update for djvulibre (Moderate)	2020-12-01
oval:org.opensuse.security:def:50182	P	enigmail on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25261	P	Security update for python-cffi, python-cryptography (Moderate)	2020-12-01
oval:org.opensuse.security:def:25092	P	Security update for MozillaFirefox (Important)	2020-12-01
oval:org.opensuse.security:def:68121	P	enigmail on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:26424	P	Security update for enigmail (Moderate)	2020-12-01
oval:org.opensuse.security:def:50169	P	pidgin-plugin-otr on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25318	P	Security update for MozillaFirefox (Important)	2020-12-01
oval:org.opensuse.security:def:26389	P	Security update for chromium (Important)	2020-12-01
oval:org.opensuse.security:def:25219	P	Security update for java-1_8_0-ibm (Moderate)	2020-12-01
oval:org.opensuse.security:def:25693	P	Security update for LibreOffice (Moderate)	2020-12-01
oval:org.opensuse.security:def:50223	P	enigmail on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:70193	P	perl-doc on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25402	P	Security update for libvirt (Important)	2020-12-01
oval:org.opensuse.security:def:25300	P	Security update for dovecot22 (Important)	2020-12-01
oval:org.opensuse.security:def:25707	P	Security update for java-1_7_1-ibm (Moderate)	2020-12-01
oval:org.opensuse.security:def:26463	P	Security update for enigmail (Moderate)	2020-12-01
oval:org.opensuse.security:def:24978	P	Security update for libxml2 (Moderate)	2020-12-01
oval:org.opensuse.security:def:25552	P	Security update for python3-requests (Moderate)	2020-12-01
oval:org.opensuse.security:def:25357	P	Security update for squid (Important)	2020-12-01
oval:org.opensuse.security:def:26428	P	Security update for redis (Moderate)	2020-12-01
oval:org.opensuse.security:def:25751	P	Security update for libssh (Moderate)	2020-12-01
oval:com.ubuntu.bionic:def:2017176880000000	V	CVE-2017-17688 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-16
oval:com.ubuntu.artful:def:201717688000	V	CVE-2017-17688 on Ubuntu 17.10 (artful) - medium.	2018-05-16
oval:com.ubuntu.xenial:def:201717688000	V	CVE-2017-17688 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-16
oval:com.ubuntu.xenial:def:2017176880000000	V	CVE-2017-17688 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-16
oval:com.ubuntu.bionic:def:201717688000	V	CVE-2017-17688 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-16
oval:com.ubuntu.disco:def:2017176880000000	V	CVE-2017-17688 on Ubuntu 19.04 (disco) - medium.	2018-05-16
oval:com.ubuntu.cosmic:def:201717688000	V	CVE-2017-17688 on Ubuntu 18.10 (cosmic) - medium.	2018-05-16
oval:com.ubuntu.cosmic:def:2017176880000000	V	CVE-2017-17688 on Ubuntu 18.10 (cosmic) - medium.	2018-05-16
oval:com.ubuntu.trusty:def:201717688000	V	CVE-2017-17688 on Ubuntu 14.04 LTS (trusty) - medium.	2018-05-16

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