CVE Vulnerabilities

CVE-2017-12800

NULL Pointer Dereference

Published: Nov 10, 2017 | Modified: Nov 22, 2017
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
UNTRIAGED

The EBML_FindNextElement function in ebmlmain.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv file.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Libebml2 Matroska * 2012-08-26 (including)
Mkclean Matroska 0.8.9 (including) 0.8.9 (including)
Mkvalidator Matroska 0.5.1 (including) 0.5.1 (including)
Libebml Ubuntu artful *
Libebml Ubuntu zesty *

Potential Mitigations

References