CVE-2021-3156

HIGH7.8Publicada el 26 de enero de 2021

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.

Explotada activamente

  • En el catálogo CISA de vulnerabilidades explotadas desde el 6 abr 2022
  • Las agencias federales de EE. UU. deben corregirla antes del 27 abr 2022 (BOD 22-01)
  • Primer ataque observado 434 días después de la divulgación

Apply updates per vendor instructions.

Fuente: CISA KEV · 20 ago 2026 7 ago 2026 23 jul 2026 29 jul 2025 30 may 2025 19 jun 2024

Puntuación CVSS7.8 / 10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Tipo de debilidad (CWE)CWE-193, CWE-193
Fabricantesdebian, oracle, netapp, fedoraproject, beyondtrust, sudo project, mcafee, synology

Productos afectados

FabricantesProdottoVersioni
sudo projectsudo< 1.8.32
fedoraprojectfedora32
debiandebian linux9.0
netappactive iq unified manager-
netappcloud backup-
netapphci management node-
netapponcommand unified manager core package-
netappontap select deploy administration utility-
netappontap tools9
netappsolidfire-
mcafeeweb gateway8.2.17
synologydiskstation manager unified controller3.0
synologydiskstation manager6.2
synologyskynas firmware-
synologyskynas-
synologyvs960hd firmware-
synologyvs960hd-
beyondtrustprivilege management for mac< 21.1.1
beyondtrustprivilege management for unix\/linux< 10.3.2-10
oraclemicros compact workstation 3 firmware310
oraclemicros compact workstation 3-
oraclemicros es400 firmware<= 410
oraclemicros es400-
oraclemicros kitchen display system firmware210
oraclemicros kitchen display system-

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This product uses the NVD API but is not endorsed or certified by the NVD.

Base de datos CVE