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AEGLIX vulnerability intelligence

CVE-2021-3156

HIGH · CVSS 7.8 · Analyzed

Published: 2021-01-26 · Updated: 2026-06-17 · Source: NVD

Vulnerability overview

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

Severity and scoring

CVSS score
7.8 · HIGH
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-193

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Listed in CISA’s Known Exploited Vulnerabilities catalog.

Affected product
Sudo · Sudo
Added to catalog
2022-04-06
Required action
Apply updates per vendor instructions.
CISA remediation due date
2022-04-27

CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*

    From (inclusive): 1.8.2

    Before (exclusive): 1.8.32

  • cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*

    From (inclusive): 1.9.0

    Before (exclusive): 1.9.5

  • cpe:2.3:a:sudo_project:sudo:1.9.5:-:*:*:*:*:*:*

  • cpe:2.3:a:sudo_project:sudo:1.9.5:patch1:*:*:*:*:*:*

  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

  • cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*

  • cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*

  • cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*

  • cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:*

  • cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*

  • cpe:2.3:a:netapp:ontap_tools:9:*:*:*:*:vmware_vsphere:*:*

  • cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*

  • cpe:2.3:a:mcafee:web_gateway:8.2.17:*:*:*:*:*:*:*

  • cpe:2.3:a:mcafee:web_gateway:9.2.8:*:*:*:*:*:*:*

  • cpe:2.3:a:mcafee:web_gateway:10.0.4:*:*:*:*:*:*:*

  • cpe:2.3:a:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*

  • cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:*

  • cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:*

  • cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*

  • cpe:2.3:a:beyondtrust:privilege_management_for_mac:*:*:*:*:*:*:*:*

    Before (exclusive): 21.1.1

  • cpe:2.3:a:beyondtrust:privilege_management_for_unix\/linux:*:*:*:*:basic:*:*:*

    Before (exclusive): 10.3.2-10

  • cpe:2.3:o:oracle:micros_compact_workstation_3_firmware:310:*:*:*:*:*:*:*

  • cpe:2.3:o:oracle:micros_es400_firmware:*:*:*:*:*:*:*:*

    From (inclusive): 400

    Through (inclusive): 410

  • cpe:2.3:o:oracle:micros_kitchen_display_system_firmware:210:*:*:*:*:*:*:*

  • cpe:2.3:o:oracle:micros_workstation_5a_firmware:5a:*:*:*:*:*:*:*

  • cpe:2.3:o:oracle:micros_workstation_6_firmware:*:*:*:*:*:*:*:*

    From (inclusive): 610

    Through (inclusive): 655

  • cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:*

    From (inclusive): 10.3.0.0.0

    Through (inclusive): 10.3.0.2.1

  • cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:*

    From (inclusive): 10.4.0.1.0

    Through (inclusive): 10.4.0.3.1

  • cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:*

    From (inclusive): 7.4.0

    Through (inclusive): 7.7.1

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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