CVE-2015-8872
medium
CVSS v3
6.2
CVSS v4 NEW
โ
VIR risk
6.2
Description
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."
Predictions
Exploit likelihood
62%
Patch ETA
โ
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 3 releases
| Version | Status | Fixed in |
|---|---|---|
| 42.1 | Affected | โ |
| 13.2 | Affected | โ |
| โ | Affected | โ |
Ubuntu Affected 4 releases
| Version | Status | Fixed in |
|---|---|---|
| 16.04 | Affected | โ |
| 15.10 | Affected | โ |
| 14.04 | Affected | โ |
| 12.04 | Affected | โ |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.0-1 |
| sid | Fixed | 4.0-1 |
| forky | Fixed | 4.0-1 |
| bullseye | Fixed | 4.0-1 |
| bookworm | Fixed | 4.0-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| dosfstools_project | dosfstools | {"endIncluding":"3.0.28"} | |
References
- https://www.suse.com/security/cve/CVE-2015-8872.html
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00001.html
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00014.html
- http://www.securityfocus.com/bid/90311
- http://www.ubuntu.com/usn/USN-2986-1
- https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html
- https://github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7
- https://github.com/dosfstools/dosfstools/issues/12
- https://github.com/dosfstools/dosfstools/releases/tag/v4.0
- https://lists.debian.org/debian-lts-announce/2020/05/msg00028.html
- https://security-tracker.debian.org/tracker/CVE-2015-8872
CWEs
CWE-189
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.