Integer Underflow Affecting gstreamer1-plugins-good package, versions <0:1.16.1-5.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

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  • Snyk IDSNYK-ALMALINUX8-GSTREAMER1PLUGINSGOOD-8533821
  • published19 Dec 2024
  • disclosed17 Dec 2024

Introduced: 17 Dec 2024

NewCVE-2024-47606  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 gstreamer1-plugins-good to version 0:1.16.1-5.el8_10 or higher.
This issue was patched in ALSA-2024:11299.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gstreamer1-plugins-good package and not the gstreamer1-plugins-good package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

GStreamer is a library for constructing graphs of media-handling components. An integer underflow has been detected in the function qtdemux_parse_theora_extension within qtdemux.c. The vulnerability occurs due to an underflow of the gint size variable, which causes size to hold a large unintended value when cast to an unsigned integer. This 32-bit negative value is then cast to a 64-bit unsigned integer (0xfffffffffffffffa) in a subsequent call to gst_buffer_new_and_alloc. The function gst_buffer_new_allocate then attempts to allocate memory, eventually calling _sysmem_new_block. The function _sysmem_new_block adds alignment and header size to the (unsigned) size, causing the overflow of the 'slice_size' variable. As a result, only 0x89 bytes are allocated, despite the large input size. When the following memcpy call occurs in gst_buffer_fill, the data from the input file will overwrite the content of the GstMapInfo info structure. Finally, during the call to gst_memory_unmap, the overwritten memory may cause a function pointer hijack, as the mem->allocator->mem_unmap_full function is called with a corrupted pointer. This function pointer overwrite could allow an attacker to alter the execution flow of the program, leading to arbitrary code execution. This vulnerability is fixed in 1.24.10.

CVSS Scores

version 3.1