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CVE-2019-9755

Publication date 21 March 2019

Last updated 24 July 2024

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

7.0 · High

Score breakdown

An integer underflow issue exists in ntfs-3g 2017.3.23. A local attacker could potentially exploit this by running /bin/ntfs-3g with specially crafted arguments from a specially crafted directory to cause a heap buffer overflow, resulting in a crash or the ability to execute arbitrary code. In installations where /bin/ntfs-3g is a setuid-root binary, this could lead to a local escalation of privileges.

Read the notes from the security team

Status

Package Ubuntu Release Status
ntfs-3g 18.10 cosmic
Fixed 1:2017.3.23-2ubuntu0.18.10.1
18.04 LTS bionic
Fixed 1:2017.3.23-2ubuntu0.18.04.1
16.04 LTS xenial
Fixed 1:2015.3.14AR.1-1ubuntu0.2
14.04 LTS trusty Ignored

Notes

chrisccoulson

This bug only has security implications when ntfs-3g is installed as setuid-root. It's ignored in Ubuntu releases prior to xenial, as it isn't installed as setuid-root in these releases.

Severity score breakdown

Parameter Value
Base score 7.0 · High
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references