ntfs-3g: heap-based buffer overflow leads to local root privilege escalation
Published Jun 5, 2019
7.0
HIGHCVSS 3.1
EPSS 0.53%
Description
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.
Affected products
No data.
Configuration 2
- 8.0
- 8.1
- 8.2
- 8.4
- 7.0
- 8.2
- 8.4
- 8.2
- 8.4
No data.
Advanced Virtualization for RHEL 8.1.0
virt-devel:8.1-8010020190927171011.cdc1202b
Fixed · RHBA-2019:3723
Advanced Virtualization for RHEL 8.1.0
virt:8.1-8010020190927171011.cdc1202b
Fixed · RHBA-2019:3723
Red Hat Enterprise Linux 7
libguestfs-winsupport-0:7.2-3.el7
Fixed · RHSA-2019:2308
Red Hat Enterprise Linux 8
virt-devel:rhel-8010020190916153839.cdc1202b
Fixed · RHSA-2019:3345
Red Hat Enterprise Linux 8
virt:rhel-8010020190916153839.cdc1202b
Fixed · RHSA-2019:3345
Red Hat Enterprise Linux 6
libguestfs-winsupport
Will not fix
Red Hat Enterprise Linux 8 Advanced Virtualization
virt:8.0.0/libguestfs-winsupport
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Advanced Virtualization for RHEL 8.1.0 | virt-devel:8.1-8010020190927171011.cdc1202b | Fixed | RHBA-2019:3723 |
| Advanced Virtualization for RHEL 8.1.0 | virt:8.1-8010020190927171011.cdc1202b | Fixed | RHBA-2019:3723 |
| Red Hat Enterprise Linux 7 | libguestfs-winsupport-0:7.2-3.el7 | Fixed | RHSA-2019:2308 |
| Red Hat Enterprise Linux 8 | virt-devel:rhel-8010020190916153839.cdc1202b | Fixed | RHSA-2019:3345 |
| Red Hat Enterprise Linux 8 | virt:rhel-8010020190916153839.cdc1202b | Fixed | RHSA-2019:3345 |
| Red Hat Enterprise Linux 6 | libguestfs-winsupport | Will not fix | n/a |
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:8.0.0/libguestfs-winsupport | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw has a lower impact on Red Hat Enterprise Linux because the ntfs-3g tool is run in a supermin appliance, which is similar to a virtual machine instantiated on the fly, and it does not have the SUID bit set. Thus an attacker is very limited on what he can do to the vulnerable system.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
AV:L/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00531) | 42.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00531) | 40.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.11% (0.00114) | 27.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.36% (0.01365) | 71.56th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.36% (0.01365) | 69.53th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.74% (0.02737) | 62.78th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.03% (0.05034) | 78.60th | v1 |
| Jan 6, 2022 | 5.03% (0.05034) | 78.39th | v1 |
| Jan 5, 2022 | 1.17% (0.01168) | 68.20th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.17% (0.01168) | 0.00th | v1 |
References (10)
- https://access.redhat.com/errata/RHBA-2019:3723 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2308 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3345 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-9755 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1691624 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2019-9755
- https://security.gentoo.org/glsa/202007-45 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-9755
- https://www.debian.org/security/2019/dsa-4413
- https://www.tuxera.com/community/release-history/ x_refsource_MISCRelease NotesVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHBA-2019:3723 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:2308 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:3345 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2019-9755 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1691624 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-9755 | ||
| https://security.gentoo.org/glsa/202007-45 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-9755 | ||
| https://www.debian.org/security/2019/dsa-4413 | ||
| https://www.tuxera.com/community/release-history/ | x_refsource_MISCRelease NotesVendor Advisory |
Change history (0)
No recorded changes yet.