Updated Sudo packages to address CVE-2021-3156, which could allow an attacker to obtain root privileges, are now available for all major Linux distributions.

CVE-2021-3156

Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

CVE-2021-3156 National Vulnerability Database (NVD)

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Sudo is distributed in source and binary package formats. For information on how the binary packages are built, see the building packages page.

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Arch Linux

ASA-202101-25: sudo: multiple issues

A sudo security update has been released for Arch Linux.

ASA-202101-25: sudo: multiple issues

CentOS

CESA-2021:0221 Important CentOS 7 sudo Security Update

A sudo bug fix update has been released for CentOS 7.

CESA-2021:0221 Important CentOS 7 sudo Security Update

Debian GNU/Linux

ELA-351-1 sudo security update

A sudo security update has been released for Debian GNU/Linux 8 Extended LTS to address a heap-based buffer overflow vulnerability in sudo.

ELA-351-1 sudo security update

DLA 2534-1: sudo security update

A sudo security update has been released for Debian GNU/Linux 9 LTS to address a heap-based buffer overflow vulnerability.

DLA 2534-1: sudo security update

DSA 4839-1: sudo security update

A sudo security update has been released for Debian GNU/Linux 10 to address a heap-based buffer overflow vulnerability.

DSA 4839-1: sudo security update

Fedora Linux

Fedora 33 Update: sudo-1.9.5p1-1.fc33

A sudo security update has been released for Fedora 33. SECURITY: Fedora 33 Update: sudo-1.9.5p1-1.fc33

Fedora 33 Update: sudo-1.9.5p1-1.fc33

Fedora 32 Update: sudo-1.9.5p1-1.fc32

A sudo security update has been released for Fedora 32. SECURITY: Fedora 32 Update: sudo-1.9.5p1-1.fc32

Fedora 32 Update: sudo-1.9.5p1-1.fc32

Fedora 32 Update: sudo-1.9.5p2-1.fc32

A sudo security update has been released for Fedora 32. SECURITY: Fedora 32 Update: sudo-1.9.5p2-1.fc32

Fedora 32 Update: sudo-1.9.5p2-1.fc32

Fedora 33 Update: sudo-1.9.5p2-1.fc33

A sudo security update has been released for Fedora 33. SECURITY: Fedora 33 Update: sudo-1.9.5p2-1.fc33

Fedora 33 Update: sudo-1.9.5p2-1.fc33

Gentoo Linux

GLSA 202101-33 : sudo: Multiple vulnerabilities

A sudo security update has been released for Gentoo Linux. .

GLSA 202101-33 : sudo: Multiple vulnerabilities

openSUSE

openSUSE-SU-2021:0169-1: important: Security update for sudo

A sudo security update has been released for openSUSE Leap 15.1 to address three vulnerabilities.

openSUSE-SU-2021:0169-1: important: Security update for sudo

openSUSE-SU-2021:0170-1: important: Security update for sudo

A sudo security update has been released for openSUSE Leap 15.2 to address three vulnerabilities.

openSUSE-SU-2021:0170-1: important: Security update for sudo

Oracle Linux

ELSA-2021-9019 Important: Oracle Linux 6 sudo security update

A sudo security update has been released for Oracle Linux 6.

ELSA-2021-9019 Important: Oracle Linux 6 sudo security update

ELSA-2021-0221 Important: Oracle Linux 7 sudo security update

A sudo security update has been released for Oracle Linux 7. 

ELSA-2021-0221 Important: Oracle Linux 7 sudo security update

ELSA-2021-0221 Important: Oracle Linux 7 sudo security update (aarch64)

A sudo security update (aarch64) has been released for Oracle Linux 7.

ELSA-2021-0221 Important: Oracle Linux 7 sudo security update (aarch64)

ELSA-2021-0218 Important: Oracle Linux 8 sudo security update

A sudo security update has been released for Oracle Linux 8.

ELSA-2021-0218 Important: Oracle Linux 8 sudo security update

Red Hat Enterprise Linux

RHSA-2021:0223-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 7.6. RHSA-2021:0223-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0223-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0 ...

RHSA-2021:0223-01: Important: sudo security update

RHSA-2021:0222-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 7.7. RHSA-2021:0222-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0222-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0 ...

RHSA-2021:0222-01: Important: sudo security update

RHSA-2021:0221-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 7. RHSA-2021:0221-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0221-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:022 ...

RHSA-2021:0221-01: Important: sudo security update

RHSA-2021:0224-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 7.4. RHSA-2021:0224-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0224-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0 ...

RHSA-2021:0224-01: Important: sudo security update

RHSA-2021:0227-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 6. RHSA-2021:0227-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0227-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:022 ...

RHSA-2021:0227-01: Important: sudo security update

RHSA-2021:0219-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 8.2. RHSA-2021:0219-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0219-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0 ...

RHSA-2021:0219-01: Important: sudo security update

RHSA-2021:0225-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 7.3. RHSA-2021:0225-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0225-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0 ...

RHSA-2021:0225-01: Important: sudo security update

RHSA-2021:0218-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 8. RHSA-2021:0218-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0218-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:021 ...

RHSA-2021:0218-01: Important: sudo security update

RHSA-2021:0220-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 8.1. RHSA-2021:0220-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0220-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0 ...

RHSA-2021:0220-01: Important: sudo security update

RHSA-2021:0226-01: Important: sudo security update

A sudo security update has been released for Red Hat Enterprise Linux 7.2. RHSA-2021:0226-01: Important: sudo security update= Red Hat Security AdvisorySynopsis:Important: sudo security update Advisory ID: RHSA-2021:0226-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0 ...

RHSA-2021:0226-01: Important: sudo security update

Slackware Linux

Sudo (SSA:2021-026-01)

A sudo security update has been released for Slackware Linux 14.0, 14.1, 14.2, and -current to fix security issues.

Sudo (SSA:2021-026-01)

Ubuntu Linux

USN-4705-1: Sudo vulnerabilities

A sudo security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, 20.04 LTS, and 20.10.

USN-4705-1: Sudo vulnerabilities

USN-4705-2: Sudo vulnerability

Updated Sudo packages has been released for Ubuntu 12.04 ESM and 14.04 ESM.

USN-4705-2: Sudo vulnerability