HOME VULNERABILITIESCVE-2018-19857

CRITICAL

CVE-2018-19857

CWE-824Published: December 5, 2018· Updated: Jun 17, 2026

9.1

CVSS v3.1

Official Description

The CAF demuxer in modules/demux/caf.c in VideoLAN VLC media player 3.0.4 may read memory from an uninitialized pointer when processing magic cookies in CAF files, because a ReadKukiChunk() cast converts a return value to an unsigned int even if that value is negative. This could result in a denial of service and/or a potential infoleak.

Technical Analysis

CVE-2018-19857 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 9.1.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

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

Affected Vendors & Products

Debian1 product(s)

debian linux

videolan1 product(s)

vlc media player

Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/106130

ADVISORYhttps://dyntopia.com/advisories/013-vlc

ADVISORYhttps://www.debian.org/security/2019/dsa-4366

ADVISORYhttp://www.securityfocus.com/bid/106130

ADVISORYhttps://dyntopia.com/advisories/013-vlc

ADVISORYhttps://www.debian.org/security/2019/dsa-4366

All References (18)

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00005.html

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00037.html

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00040.html

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00081.html

→

http://www.securityfocus.com/bid/106130Third Party Advisory · VDB Entry

→

https://dyntopia.com/advisories/013-vlcExploit · Third Party Advisory

→

https://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=0cc5ea748ee5ff7705dde61ab15dff8f58be39d0

→

https://usn.ubuntu.com/4074-1/

→

https://www.debian.org/security/2019/dsa-4366Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00005.html

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00037.html

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00040.html

→

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00081.html

→

http://www.securityfocus.com/bid/106130Third Party Advisory · VDB Entry

→

https://dyntopia.com/advisories/013-vlcExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2018-19857

CVSS Score9.1 / 10

SeverityCRITICAL

WeaknessCWE-824

CISA KEVNo

Affected2 vendor(s)

PublishedDec 5, 2018

Related CVEs (CWE-824)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2018-19857 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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