CVE-2021-3156

CVE Published 2021-01-26
Related CWE(s) CWE-193: Off-by-one Error
Related Vendor(s) mcafee, oracle, sudo_project, netapp, debian, beyondtrust, synology, fedoraproject
Related Product(s) solidfire, hci_management_node, web_gateway, diskstation_manager_unified_controller, ontap_tools, cloud_backup, micros_kitchen_display_system_firmware, tekelec_platform_distribution, active_iq_unified_manager, communications_performance_intelligence_center, sudo, micros_workstation_6_firmware, ontap_select_deploy_administration_utility, micros_workstation_5a_firmware, diskstation_manager, oncommand_unified_manager_core_package, micros_es400_firmware, privilege_management_for_mac, privilege_management_for_unix\/linux, skynas_firmware, micros_compact_workstation_3_firmware, vs960hd_firmware, fedora, debian_linux
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