Medium severity · published Jun 3, 2016
CVE-2016-4804
The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer…
6.2
CVSS
0.4%
EPSS
No
On KEV
Description
The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
Dosfstools · Dosfstools Project
through 3.0.28 · source: NVD
LE
Leap · Opensuse
42.1 · source: NVD
OP
Opensuse · Opensuse
13.2 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10; 16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4804
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4804
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-06/msg00001.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-09/msg00014.html
www.securityfocus.com
http://www.securityfocus.com/bid/90311
www.ubuntu.com
http://www.ubuntu.com/usn/USN-2986-1
Patch
https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html
github.com
https://github.com/dosfstools/dosfstools/commit/e8eff147e9da1185f9afd5b25948153a3b97cf52
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