Gstreamer
CVE-2023-38104
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
GStreamer RealMedia File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of MDPR chunks. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21444.
AnalysisAI
An integer overflow vulnerability in GStreamer's RealMedia file parsing functionality allows remote attackers to execute arbitrary code when processing malicious MDPR chunks. The vulnerability affects GStreamer version 1.22.3 and potentially earlier versions, requiring user interaction to trigger but potentially exploitable through various attack vectors depending on implementation. With an EPSS score of 4.97% (90th percentile), this vulnerability poses a significant exploitation risk and has patches available from the vendor.
Technical ContextAI
GStreamer is a widely-used open-source multimedia framework that handles various media formats including RealMedia files. The vulnerability resides in the rmdemux component's MDPR (Media Properties Header) chunk parsing logic, where insufficient validation of user-supplied data leads to an integer overflow (CWE-190) before buffer allocation. This classic integer overflow pattern occurs when arithmetic operations on untrusted input values exceed the maximum value that can be stored in an integer type, causing the value to wrap around and potentially allocate a smaller buffer than intended, leading to heap corruption and code execution opportunities.
RemediationAI
Apply the vendor-provided patch available at https://gitlab.freedesktop.org/gstreamer/gstreamer/uploads/d4a0aa4ec2165f6c418703b9e1459d8b/0002-rmdemux-Check-for-integer-overflow-when-calculation-.patch immediately, or upgrade to a patched version of GStreamer when released. As a temporary mitigation, disable or restrict processing of RealMedia files if feasible in your environment, and implement strict input validation for any media files processed through GStreamer. Organizations should also review the Zero Day Initiative advisory at https://www.zerodayinitiative.com/advisories/ZDI-23-1008/ for additional context.
Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer
Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer
Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer
The FLIC decoder in GStreamer before 1.10.2 allows remote attackers to cause a denial of service (out-of-bounds write an
A heap-based buffer overflow vulnerability exists in GStreamer's RTSP connection parser that allows remote attackers to
An integer overflow vulnerability in the GStreamer multimedia framework's matroska demuxer allows heap memory corruption
A critical integer overflow vulnerability in GStreamer's qtdemux element allows attackers to trigger denial of service o
A critical integer overflow vulnerability in the GStreamer multimedia framework's Matroska (MKV) demuxer can cause denia
An integer overflow vulnerability in GStreamer's Matroska demuxer can cause denial of service or potentially heap memory
An integer overflow vulnerability in GStreamer's AVI demux element allows attackers to trigger a heap overwrite when par
A heap overflow vulnerability exists in GStreamer's matroskaparse element due to an integer overflow in the gst_matroska
An integer overflow vulnerability in GStreamer's matroska demuxer can cause denial of service through segmentation fault
Same weakness CWE-190 – Integer Overflow or Wraparound
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External POC / Exploit Code
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