Integer overflow in Tuxera Ntfs-3g
CVE-2021-39254
A crafted NTFS image can cause an integer overflow in memmove, leading to a heap-based buffer overflow in the function ntfs_attr_record_resize, in NTFS-3G < 2021.8.22.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Tuxera Ntfs-3g
- Debian Linux — versions 9.0, 10.0, 11.0
- Fedoraproject Fedora — versions 33, 35
Weakness classification (CWE)
References
- github.com/tuxera/ntfs-3g/releases (Third Party Advisory, Release Notes)
- github.com/tuxera/ntfs-3g/security/advisories/GHSA-q759-8j5v-q5jp (Third Party Advisory)
- www.debian.org/security/2021/dsa-4971 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/11/msg00013.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202301-01 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-39254?
- CVE-2021-39254 is a high-severity vulnerability in Tuxera Ntfs-3g, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-09-07.
- How severe is CVE-2021-39254?
- High severity. CVSS v3 base score is 7.8 out of 10.