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Vulnerability details: VCID-etx9-y1en-k3dd
Vulnerability ID VCID-etx9-y1en-k3dd
Aliases CVE-2018-19857
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.2
Risk 4.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-824 Access of Uninitialized Pointer
System Score Found at
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
epss 0.01574 https://api.first.org/data/v1/epss?cve=CVE-2018-19857
cvssv2 6.4 https://nvd.nist.gov/vuln/detail/CVE-2018-19857
cvssv3 9.1 https://nvd.nist.gov/vuln/detail/CVE-2018-19857
Reference id Reference type URL
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
https://api.first.org/data/v1/epss?cve=CVE-2018-19857
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19857
https://dyntopia.com/advisories/013-vlc
https://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=0cc5ea748ee5ff7705dde61ab15dff8f58be39d0
https://www.debian.org/security/2019/dsa-4366
http://www.securityfocus.com/bid/106130
915760 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=915760
cpe:2.3:a:videolan:vlc_media_player:3.0.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:videolan:vlc_media_player:3.0.4:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CVE-2018-19857 https://nvd.nist.gov/vuln/detail/CVE-2018-19857
USN-4074-1 https://usn.ubuntu.com/4074-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-19857
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-19857
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.80783
EPSS Score 0.01574
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:39:30.039503+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/4074-1/ 37.0.0