CVE-2018-19857
CriticalCVSS 9.1Exploitation Probability (EPSS)
Very high risk90th percentile - higher than 90% of all known CVEs
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.
Risk Assessment
An attacker can supply a specially crafted CAF file to cause an application crash or leak data from memory. The risk affects users who play untrusted media files with a vulnerable version of VLC.
Recommendation
Update VideoLAN VLC media player to a version later than 3.0.4 that contains the fix for CVE-2018-19857. Until the update, avoid opening untrusted CAF files.
Other vulnerabilities in VideoLAN VLC media player
See all- CVE-2011-3623High
Multiple stack-based buffer overflows in VideoLAN VLC media player before version 1.0.2 allow remote attackers to execute arbitrary code via crafted ASF, AVI, or MP4 files.
- CVE-2010-1445High
A heap-based buffer overflow in VideoLAN VLC media player before version 1.0.6 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted byte stream in an RTMP session.
- CVE-2010-1444High
The ZIP archive decompressor in VideoLAN VLC media player before version 1.0.6 allows remote attackers to cause a denial of service (invalid memory access and application crash) or possibly execute arbitrary code via a crafted archive.
- CVE-2010-1442High
VideoLAN VLC media player before version 1.0.6 allows remote attackers to cause a denial of service (invalid memory access and application crash) or possibly execute arbitrary code via a crafted byte stream to the (1) AVI, (2) ASF, or (3) Matroska (aka MKV) demuxer.
- CVE-2010-1441High
Multiple heap-based buffer overflows in VideoLAN VLC media player before version 1.0.6 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted byte stream to the A/52, DTS, or MPEG Audio decoder.
- CVE-2014-6440Critical
VideoLAN VLC media player before 2.1.5 allows remote attackers to execute arbitrary code or cause a denial of service.
- CVE-2016-5108Critical
Buffer overflow in the DecodeAdpcmImaQT function in VideoLAN VLC media player before version 2.2.4 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted QuickTime IMA file.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS