Vulnerability in Dosfstools Project
CVE-2015-8872
The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an "off-by-two error."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% 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
- Dosfstools Project
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-updates/2016-06/msg00001.html (vendor-advisory)
- github.com/dosfstools/dosfstools/releases/tag/v4.0 (Patch)
- github.com/dosfstools/dosfstools/issues/12 (Vendor Advisory)
- blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesse… (Vendor Advisory)
- www.ubuntu.com/usn/USN-2986-1 (vendor-advisory)
- github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7
- lists.opensuse.org/opensuse-updates/2016-09/msg00014.html (vendor-advisory)
- www.securityfocus.com/bid/90311 (vdb-entry)
- lists.debian.org/debian-lts-announce/2020/05/msg00028.html (mailing-list)
Frequently asked questions
- What is CVE-2015-8872?
- CVE-2015-8872 is a medium-severity vulnerability in Dosfstools Project, classified under CWE-189. CVSS score: 6.2/10. Published 2016-06-03.
- How severe is CVE-2015-8872?
- Medium severity. CVSS v3 base score is 6.2 out of 10.
- Is CVE-2015-8872 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.