CVE-2018-18509 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2018-18509 Interim 1 40 2025-08-14T02:24:37Z current 2021-05-30T14:18:10Z 2025-08-14T02:24:37Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2018-18509 A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/sle-security-updates/2019-February/005148.html E-Mail link for SUSE-SU-2019:0469-1 https://lists.suse.com/pipermail/sle-security-updates/2019-April/005290.html E-Mail link for SUSE-SU-2019:0853-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/NSXP45BAXW5ILKJSQRXHTBUOBZUKLD2F/#NSXP45BAXW5ILKJSQRXHTBUOBZUKLD2F E-Mail link for openSUSE-SU-2019:0249-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XYPZEBWIK7AMOD476T3MOZLNOKSPBHWB/#XYPZEBWIK7AMOD476T3MOZLNOKSPBHWB E-Mail link for openSUSE-SU-2019:0250-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YTL5HAWTQVZCKKAVSVP4LCGEQTWZR73J/#YTL5HAWTQVZCKKAVSVP4LCGEQTWZR73J E-Mail link for openSUSE-SU-2019:0251-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/AL5AUD2CY37ZNSQZPBX6C3K32ZVWBIIH/#AL5AUD2CY37ZNSQZPBX6C3K32ZVWBIIH E-Mail link for openSUSE-SU-2019:1162-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE CaaS Platform 4.0 SUSE Liberty Linux 8 SUSE Linux Enterprise Workstation Extension 15 SUSE Linux Enterprise Workstation Extension 15 SP1 SUSE Linux Enterprise Workstation Extension 15 SP2 SUSE Linux Enterprise Workstation Extension 15 SP3 SUSE Linux Enterprise Workstation Extension 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS SUSE Linux Enterprise Workstation Extension 15 SUSE Linux Enterprise Workstation Extension 15 SP1 SUSE Linux Enterprise Server 15 SP1-LTSS SUSE Linux Enterprise Workstation Extension 15 SP2 SUSE Linux Enterprise Workstation Extension 15 SP3 SUSE Linux Enterprise Workstation Extension 15 SP4 SUSE Linux Enterprise Workstation Extension 15 SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Linux Enterprise Workstation Extension 15 SP1 SUSE Linux Enterprise Workstation Extension 15 SP2 SUSE Linux Enterprise Workstation Extension 15 SP3 SUSE Linux Enterprise Workstation Extension 15 SP4 SUSE Package Hub 12 openSUSE Leap 15.0 openSUSE Leap 15.2 openSUSE Leap 15.3 openSUSE Leap 15.4 openSUSE Tumbleweed MozillaFirefox MozillaFirefox-devel MozillaFirefox-translations-common MozillaFirefox-translations-other MozillaThunderbird-60.5.1-79.1 MozillaThunderbird-60.6.1-3.28.1 MozillaThunderbird-60.6.1-lp150.3.37.1 MozillaThunderbird-68.9.0-lp152.1.4 MozillaThunderbird-78.10.0-8.23.1 MozillaThunderbird-78.10.0-bp153.1.1 MozillaThunderbird-91.1.1-1.1 MozillaThunderbird-91.8.0-150200.8.65.1 MozillaThunderbird-buildsymbols-60.5.1-79.1 MozillaThunderbird-buildsymbols-60.6.1-lp150.3.37.1 MozillaThunderbird-translations-common-60.5.1-79.1 MozillaThunderbird-translations-common-60.6.1-3.28.1 MozillaThunderbird-translations-common-60.6.1-lp150.3.37.1 MozillaThunderbird-translations-common-68.9.0-lp152.1.4 MozillaThunderbird-translations-common-78.10.0-8.23.1 MozillaThunderbird-translations-common-78.10.0-bp153.1.1 MozillaThunderbird-translations-common-91.1.1-1.1 MozillaThunderbird-translations-common-91.8.0-150200.8.65.1 MozillaThunderbird-translations-other-60.5.1-79.1 MozillaThunderbird-translations-other-60.6.1-3.28.1 MozillaThunderbird-translations-other-60.6.1-lp150.3.37.1 MozillaThunderbird-translations-other-68.9.0-lp152.1.4 MozillaThunderbird-translations-other-78.10.0-8.23.1 MozillaThunderbird-translations-other-78.10.0-bp153.1.1 MozillaThunderbird-translations-other-91.1.1-1.1 MozillaThunderbird-translations-other-91.8.0-150200.8.65.1 thunderbird-60.6.1-1.el8 thunderbird-60.6.1-1.el8 as a component of SUSE Liberty Linux 8 MozillaThunderbird-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 MozillaThunderbird-translations-common-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 MozillaThunderbird-translations-other-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 MozillaThunderbird-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP1 MozillaThunderbird-translations-common-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP1 MozillaThunderbird-translations-other-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP1 MozillaThunderbird-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP2 MozillaThunderbird-translations-common-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP2 MozillaThunderbird-translations-other-60.6.1-3.28.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP2 MozillaThunderbird-78.10.0-8.23.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP3 MozillaThunderbird-translations-common-78.10.0-8.23.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP3 MozillaThunderbird-translations-other-78.10.0-8.23.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP3 MozillaThunderbird-91.8.0-150200.8.65.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP4 MozillaThunderbird-translations-common-91.8.0-150200.8.65.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP4 MozillaThunderbird-translations-other-91.8.0-150200.8.65.1 as a component of SUSE Linux Enterprise Workstation Extension 15 SP4 MozillaThunderbird-60.5.1-79.1 as a component of SUSE Package Hub 12 MozillaThunderbird-buildsymbols-60.5.1-79.1 as a component of SUSE Package Hub 12 MozillaThunderbird-translations-common-60.5.1-79.1 as a component of SUSE Package Hub 12 MozillaThunderbird-translations-other-60.5.1-79.1 as a component of SUSE Package Hub 12 MozillaThunderbird-60.6.1-lp150.3.37.1 as a component of openSUSE Leap 15.0 MozillaThunderbird-buildsymbols-60.6.1-lp150.3.37.1 as a component of openSUSE Leap 15.0 MozillaThunderbird-translations-common-60.6.1-lp150.3.37.1 as a component of openSUSE Leap 15.0 MozillaThunderbird-translations-other-60.6.1-lp150.3.37.1 as a component of openSUSE Leap 15.0 MozillaThunderbird-68.9.0-lp152.1.4 as a component of openSUSE Leap 15.2 MozillaThunderbird-translations-common-68.9.0-lp152.1.4 as a component of openSUSE Leap 15.2 MozillaThunderbird-translations-other-68.9.0-lp152.1.4 as a component of openSUSE Leap 15.2 MozillaThunderbird-78.10.0-bp153.1.1 as a component of openSUSE Leap 15.3 MozillaThunderbird-translations-common-78.10.0-bp153.1.1 as a component of openSUSE Leap 15.3 MozillaThunderbird-translations-other-78.10.0-bp153.1.1 as a component of openSUSE Leap 15.3 MozillaThunderbird-91.8.0-150200.8.65.1 as a component of openSUSE Leap 15.4 MozillaThunderbird-translations-common-91.8.0-150200.8.65.1 as a component of openSUSE Leap 15.4 MozillaThunderbird-translations-other-91.8.0-150200.8.65.1 as a component of openSUSE Leap 15.4 MozillaThunderbird-91.1.1-1.1 as a component of openSUSE Tumbleweed MozillaThunderbird-translations-common-91.1.1-1.1 as a component of openSUSE Tumbleweed MozillaThunderbird-translations-other-91.1.1-1.1 as a component of openSUSE Tumbleweed MozillaFirefox as a component of SUSE CaaS Platform 4.0 MozillaFirefox-devel as a component of SUSE CaaS Platform 4.0 MozillaFirefox-translations-common as a component of SUSE CaaS Platform 4.0 MozillaFirefox-translations-other as a component of SUSE CaaS Platform 4.0 MozillaFirefox as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS MozillaFirefox-devel as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS MozillaFirefox-translations-common as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS MozillaFirefox-translations-other as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS MozillaFirefox as a component of SUSE Linux Enterprise Server 15 SP1-LTSS MozillaFirefox-devel as a component of SUSE Linux Enterprise Server 15 SP1-LTSS MozillaFirefox-translations-common as a component of SUSE Linux Enterprise Server 15 SP1-LTSS MozillaFirefox-translations-other as a component of SUSE Linux Enterprise Server 15 SP1-LTSS MozillaFirefox as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 MozillaFirefox-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 MozillaFirefox-translations-common as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 MozillaFirefox-translations-other as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1. CVE-2018-18509 SUSE Liberty Linux 8:thunderbird-60.6.1-1.el8 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1:MozillaThunderbird-buildsymbols-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2:MozillaThunderbird-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2:MozillaThunderbird-buildsymbols-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2:MozillaThunderbird-translations-common-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2:MozillaThunderbird-translations-other-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP3:MozillaThunderbird-buildsymbols-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP4:MozillaThunderbird-buildsymbols-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP5:MozillaThunderbird-buildsymbols-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP6:MozillaThunderbird-buildsymbols-60.6.1-3.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP7:MozillaThunderbird-buildsymbols-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15:MozillaThunderbird-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15:MozillaThunderbird-translations-common-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15:MozillaThunderbird-translations-other-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15 SP1:MozillaThunderbird-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15 SP1:MozillaThunderbird-translations-common-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15 SP1:MozillaThunderbird-translations-other-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15 SP2:MozillaThunderbird-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15 SP2:MozillaThunderbird-translations-common-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15 SP2:MozillaThunderbird-translations-other-60.6.1-3.28.1 SUSE Linux Enterprise Workstation Extension 15 SP3:MozillaThunderbird-78.10.0-8.23.1 SUSE Linux Enterprise Workstation Extension 15 SP3:MozillaThunderbird-translations-common-78.10.0-8.23.1 SUSE Linux Enterprise Workstation Extension 15 SP3:MozillaThunderbird-translations-other-78.10.0-8.23.1 SUSE Linux Enterprise Workstation Extension 15 SP4:MozillaThunderbird-91.8.0-150200.8.65.1 SUSE Linux Enterprise Workstation Extension 15 SP4:MozillaThunderbird-translations-common-91.8.0-150200.8.65.1 SUSE Linux Enterprise Workstation Extension 15 SP4:MozillaThunderbird-translations-other-91.8.0-150200.8.65.1 SUSE Package Hub 12:MozillaThunderbird-60.5.1-79.1 SUSE Package Hub 12:MozillaThunderbird-buildsymbols-60.5.1-79.1 SUSE Package Hub 12:MozillaThunderbird-translations-common-60.5.1-79.1 SUSE Package Hub 12:MozillaThunderbird-translations-other-60.5.1-79.1 openSUSE Leap 15.0:MozillaThunderbird-60.6.1-lp150.3.37.1 openSUSE Leap 15.0:MozillaThunderbird-buildsymbols-60.6.1-lp150.3.37.1 openSUSE Leap 15.0:MozillaThunderbird-translations-common-60.6.1-lp150.3.37.1 openSUSE Leap 15.0:MozillaThunderbird-translations-other-60.6.1-lp150.3.37.1 openSUSE Leap 15.2:MozillaThunderbird-68.9.0-lp152.1.4 openSUSE Leap 15.2:MozillaThunderbird-translations-common-68.9.0-lp152.1.4 openSUSE Leap 15.2:MozillaThunderbird-translations-other-68.9.0-lp152.1.4 openSUSE Leap 15.3:MozillaThunderbird-78.10.0-bp153.1.1 openSUSE Leap 15.3:MozillaThunderbird-translations-common-78.10.0-bp153.1.1 openSUSE Leap 15.3:MozillaThunderbird-translations-other-78.10.0-bp153.1.1 openSUSE Leap 15.4:MozillaThunderbird-91.8.0-150200.8.65.1 openSUSE Leap 15.4:MozillaThunderbird-translations-common-91.8.0-150200.8.65.1 openSUSE Leap 15.4:MozillaThunderbird-translations-other-91.8.0-150200.8.65.1 openSUSE Tumbleweed:MozillaThunderbird-91.1.1-1.1 openSUSE Tumbleweed:MozillaThunderbird-translations-common-91.1.1-1.1 openSUSE Tumbleweed:MozillaThunderbird-translations-other-91.1.1-1.1 moderate 5 AV:N/AC:L/Au:N/C:N/I:P/A:N 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N