CVE-2019-18634

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Summary

CVECVE-2019-18634
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-01-29 18:15:00 UTC
Updated2023-11-07 03:06:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Sudo Project Sudo All All All All
Application Sudo Project Sudo All All All All

References

ReferenceSourceLinkTags
Red Hat Customer Portal REDHAT access.redhat.com
oss-security - CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled MLIST www.openwall.com Mailing List, Third Party Advisory
[SECURITY] Fedora 32 Update: sudo-1.9.0-0.1.b1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 31 Update: sudo-1.9.0-0.1.b1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
sudo: Multiple vulnerabilities (GLSA 202003-12) — Gentoo security GENTOO security.gentoo.org
Buffer overflow when pwfeedback is set in sudoers CONFIRM www.sudo.ws Exploit, Vendor Advisory
Sudo Security Alerts MISC www.sudo.ws Vendor Advisory
USN-4263-1: Sudo vulnerability | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
Bugtraq: [slackware-security] sudo (SSA:2020-031-01) BUGTRAQ seclists.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2094-1] sudo security update MLIST lists.debian.org Mailing List, Third Party Advisory
oss-security - Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled MLIST www.openwall.com Third Party Advisory
Sudo 1.8.25p Buffer Overflow ≈ Packet Storm MISC packetstormsecurity.com Third Party Advisory, VDB Entry
USN-4263-2: Sudo vulnerability | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
oss-security - Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled MLIST www.openwall.com Exploit, Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com
About the security content of macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra - Apple Support CONFIRM support.apple.com Third Party Advisory
oss-security - Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled MLIST www.openwall.com Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-4614-1 sudo DEBIAN www.debian.org Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com
[SECURITY] Fedora 32 Update: sudo-1.9.0-0.1.b1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE-2019-18634 Sudo Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
Bugtraq: [SECURITY] [DSA 4614-1] sudo security update BUGTRAQ seclists.org Mailing List, Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com
Bugtraq: APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra BUGTRAQ seclists.org Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2020:0244-1: important: Security update SUSE lists.opensuse.org
[SECURITY] Fedora 31 Update: sudo-1.9.0-0.1.b1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Full Disclosure: APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra FULLDISC seclists.org Mailing List, Third Party Advisory
Slackware Security Advisory - sudo Updates ≈ Packet Storm MISC packetstormsecurity.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 296073 Oracle Solaris 11.4 Support Repository Update (SRU) 24.75.2 Missing (CPUJUL2020)
  • 352284 Amazon Linux Security Update for sudo: AL2012-2020-298
  • 377005 Alibaba Cloud Linux Security Update for sudo (ALINUX2-SA-2020:0019)
  • 377324 Alibaba Cloud Linux Security Update for sudo (ALINUX3-SA-2022:0113)
  • 390227 Oracle Managed Virtualization (VM) Server for x86 Security Update for sudo (OVMSA-2021-0012)
  • 500676 Alpine Linux Security Update for sudo
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