CVE-2021-3156

CVE Published 2021-01-26
Related CWE(s) CWE-193: Off-by-one Error
Related Vendor(s) netapp, fedoraproject, sudo_project, mcafee, synology, oracle, beyondtrust, debian
Related Product(s) oncommand_unified_manager_core_package, solidfire, debian_linux, micros_workstation_5a_firmware, sudo, privilege_management_for_mac, tekelec_platform_distribution, micros_compact_workstation_3_firmware, vs960hd_firmware, active_iq_unified_manager, skynas_firmware, ontap_tools, diskstation_manager_unified_controller, micros_workstation_6_firmware, communications_performance_intelligence_center, hci_management_node, privilege_management_for_unix\/linux, fedora, micros_kitchen_display_system_firmware, web_gateway, ontap_select_deploy_administration_utility, micros_es400_firmware, diskstation_manager, cloud_backup
Exploitation Reported (CISA KEV) 2022-04-06
CVSS 3 Base Score 7.8 (HIGH)
CVSS 3 Attack Complexity LOW
CVSS 3 Attack Vector LOCAL

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.

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References