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CVE-2016-4804

Date: June 3, 2016

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.

Language: C

Severity Score

Related Resources (14)

http://lists.opensuse.org/opensuse-updates/2016-06/msg00001.html
https://github.com/dosfstools/dosfstools/issues/25
https://github.com/dosfstools/dosfstools/issues/26
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://people.canonical.com/~ubuntu-security/cve/CVE-2016-4804
https://github.com/dosfstools/dosfstools/commit/e8eff147e9da1185f9afd5b25948153a3b97cf52
https://access.redhat.com/security/cve/CVE-2016-4804
https://security-tracker.debian.org/tracker/CVE-2016-4804
https://lists.debian.org/debian-lts-announce/2020/05/msg00028.html
https://nvd.nist.gov/vuln/detail/CVE-2016-4804
http://lists.opensuse.org/opensuse-updates/2016-09/msg00014.html
https://www.mend.io/vulnerability-database/CVE-2016-4804

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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