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CVE
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CVE-2016-4804Date: (C)2016-06-13   (M)2018-06-17


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.2CVSS Score : 2.1
Exploit Score: 2.5Exploit Score: 3.9
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
BID-90311
USN-2986-1
https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html
https://github.com/dosfstools/dosfstools/commit/e8eff147e9da1185f9afd5b25948153a3b97cf52
https://github.com/dosfstools/dosfstools/issues/25
https://github.com/dosfstools/dosfstools/issues/26
openSUSE-SU-2016:1461
openSUSE-SU-2016:2233

CPE    7
cpe:/a:dosfstools_project:dosfstools:3.0.28
cpe:/o:canonical:ubuntu_linux:15.10
cpe:/o:canonical:ubuntu_linux:12.04::~~lts~~~
cpe:/o:novell:leap:42.1
...
CWE    1
CWE-119
OVAL    3
oval:org.secpod.oval:def:110553
oval:org.secpod.oval:def:110597
oval:org.secpod.oval:def:703139

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