CVE-2021-39255

moderate-risk
Published 2021-09-07

A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22.

Do I need to act?

-
0.09% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (4)

Affected Vendors

Debian Tuxera

References (10)

Release Notes https://github.com/tuxera/ntfs-3g/releases
Third Party Advisory https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
Mailing List https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
Third Party Advisory https://security.gentoo.org/glsa/202301-01
Third Party Advisory https://www.debian.org/security/2021/dsa-4971
Release Notes https://github.com/tuxera/ntfs-3g/releases
Third Party Advisory https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp
Mailing List https://lists.debian.org/debian-lts-announce/2021/11/msg00013.html
Third Party Advisory https://security.gentoo.org/glsa/202301-01
Third Party Advisory https://www.debian.org/security/2021/dsa-4971
34
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 0/34 · Minimal
Exposure 10/34 · Low