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MitreCVE-2017-12780

HistoryNov 10, 2017 - 2:29 a.m.

CVE-2017-12780

2017-11-1002:29:17

CWE-416

mitre

web.nvd.nist.gov

cve-2017-12780

readdata function

ebmlstring.c

libebml2

denial of service

invalid free

application crash

crafted mkv file

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

6.3

Confidence

High

EPSS

0.001

Percentile

32.4%

JSON

The ReadData function in ebmlstring.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (invalid free and application crash) via a crafted mkv file.

Affected configurations

Nvd

Node

matroskalibebml2Range≤2012-08-26

matroskamkcleanMatch0.8.9

matroskamkvalidatorMatch0.5.1

VendorProductVersionCPE
matroskalibebml2*cpe:2.3:a:matroska:libebml2:*:*:*:*:*:*:*:*
matroskamkclean0.8.9cpe:2.3:a:matroska:mkclean:0.8.9:*:*:*:*:*:*:*
matroskamkvalidator0.5.1cpe:2.3:a:matroska:mkvalidator:0.5.1:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
matroska	libebml2	*	cpe:2.3:a:matroska:libebml2::::::::
matroska	mkclean	0.8.9	cpe:2.3:a:matroska:mkclean:0.8.9:::::::*
matroska	mkvalidator	0.5.1	cpe:2.3:a:matroska:mkvalidator:0.5.1:::::::*

References

packetstormsecurity.com/files/144902/mkvalidator-0.5.1-Denial-Of-Service.html

seclists.org/fulldisclosure/2017/Nov/19

github.com/Matroska-Org/foundation-source/issues/24

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

6.3

Confidence

High

EPSS

0.001

Percentile

32.4%

JSON

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