PT-2017-12689 · Matroska · Libebml2

Qflbo · Published 2017-11-09 · Updated 2017-11-22 · CVE-2017-12781

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libebml2 versions prior to 2012-08-26

Description The issue allows remote attackers to cause a denial of service, resulting in a null pointer dereference and application crash, via a crafted mkv file. This is due to a problem in the EBML BufferToID function in ebmlelement.c.

Recommendations For versions prior to 2012-08-26, consider updating to a version released after 2012-08-26 to resolve the issue. As a temporary workaround, consider restricting the processing of mkv files from untrusted sources to minimize the risk of exploitation.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2017-12781

Affected Products

Libebml2

References · 5

• 🔥 https://github.com/Matroska-Org/foundation-source/issues/24 · Exploit
• 🔥 http://seclists.org/fulldisclosure/2017/Nov/19 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-12781 · Security Note
• https://osv.dev/vulnerability/CVE-2017-12781 · Vendor Advisory
• http://packetstormsecurity.com/files/144902/mkvalidator-0.5.1-Denial-Of-Service.html · Note