CVE ID:	CVE-2019-18634
Description:	In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.
Test IDs:	1.3.6.1.4.1.25623.1.1.4.2020.0408.1   1.3.6.1.4.1.25623.1.1.2.2021.1657   1.3.6.1.4.1.25623.1.1.2.2020.2238   1.3.6.1.4.1.25623.1.0.704614   1.3.6.1.4.1.25623.1.1.4.2020.0409.1   1.3.6.1.4.1.25623.1.1.13.2020.031.01   1.3.6.1.4.1.25623.1.1.4.2020.0407.1   1.3.6.1.4.1.25623.1.0.892094   1.3.6.1.4.1.25623.1.1.12.2020.4263.2   1.3.6.1.4.1.25623.1.0.883199   1.3.6.1.4.1.25623.1.0.883181   1.3.6.1.4.1.25623.1.1.4.2020.0390.1   1.3.6.1.4.1.25623.1.1.2.2020.2237   1.3.6.1.4.1.25623.1.1.4.2020.0406.1   1.3.6.1.4.1.25623.1.0.853044   1.3.6.1.4.1.25623.1.0.844323   1.3.6.1.4.1.25623.1.1.2.2021.1627   1.3.6.1.4.1.25623.1.1.10.2020.0081
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2019-18634 Bugtraq: 20200129 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra (Google Search) https://seclists.org/bugtraq/2020/Jan/44 Bugtraq: 20200203 [SECURITY] [DSA 4614-1] sudo security update (Google Search) https://seclists.org/bugtraq/2020/Feb/2 Bugtraq: 20200203 [slackware-security] sudo (SSA:2020-031-01) (Google Search) https://seclists.org/bugtraq/2020/Feb/3 Debian Security Information: DSA-4614 (Google Search) https://www.debian.org/security/2020/dsa-4614 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I6TKF36KOQUVJNBHSVJFA7BU3CCEYD2F/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IY6DZ7WMDKU4ZDML6MJLDAPG42B5WVUC/ http://seclists.org/fulldisclosure/2020/Jan/40 https://security.gentoo.org/glsa/202003-12 http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html https://www.sudo.ws/security.html https://lists.debian.org/debian-lts-announce/2020/02/msg00002.html http://www.openwall.com/lists/oss-security/2020/01/30/6 http://www.openwall.com/lists/oss-security/2020/01/31/1 http://www.openwall.com/lists/oss-security/2020/02/05/2 http://www.openwall.com/lists/oss-security/2020/02/05/5 RedHat Security Advisories: RHSA-2020:0487 https://access.redhat.com/errata/RHSA-2020:0487 RedHat Security Advisories: RHSA-2020:0509 https://access.redhat.com/errata/RHSA-2020:0509 RedHat Security Advisories: RHSA-2020:0540 https://access.redhat.com/errata/RHSA-2020:0540 RedHat Security Advisories: RHSA-2020:0726 https://access.redhat.com/errata/RHSA-2020:0726 SuSE Security Announcement: openSUSE-SU-2020:0244 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00029.html https://usn.ubuntu.com/4263-1/ https://usn.ubuntu.com/4263-2/