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CVE-2021-39257

Published: 7 September 2021

A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G < 2021.8.22.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
ntfs-3g
Launchpad, Ubuntu, Debian
bionic
Released (1:2017.3.23-2ubuntu0.18.04.3)
focal
Released (1:2017.3.23AR.3-3ubuntu1.1)
hirsute
Released (1:2017.3.23AR.3-3ubuntu4.1)
impish
Released (1:2017.3.23AR.3-3ubuntu5)
trusty
Released (1:2013.1.13AR.1-2ubuntu2+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

xenial
Released (1:2015.3.14AR.1-1ubuntu0.3+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
jammy
Released (1:2017.3.23AR.3-3ubuntu5)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H