critical
9.8
CWE
190 191
Advisory Published
Updated

CVE-2024-47606: GHSL-2024-166: GStreamer Integer overflows in MP4/MOV demuxer and memory allocator that can lead to out-of-bounds writes

First published: Wed Dec 11 2024(Updated: )

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.

Credit: security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
GStreamer<1.24.10
Debian GNU/Linux=11.0
debian/gst-plugins-good1.0<=1.18.4-2+deb11u2
1.18.4-2+deb11u3
1.22.0-5+deb12u2
1.24.12-1
1.25.90-2
debian/gstreamer1.0<=1.18.4-2.1
1.18.4-2.1+deb11u1
1.22.0-2+deb12u1
1.24.12-1
1.25.90-2

Remedy

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8032.patch

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-47606?

    CVE-2024-47606 is classified as a medium severity vulnerability due to the potential for exploitation via media handling components.

  • How do I fix CVE-2024-47606?

    To mitigate CVE-2024-47606, update to the patched versions of the affected packages: gst-plugins-good1.0 at least 1.22.0-5+deb12u2 or gstreamer1.0 at least 1.18.4-2.1+deb11u1.

  • What software is affected by CVE-2024-47606?

    CVE-2024-47606 affects GStreamer versions up to 1.24.10 and specific Debian packages such as gst-plugins-good1.0 and gstreamer1.0.

  • What kind of vulnerability is CVE-2024-47606?

    CVE-2024-47606 is an integer underflow vulnerability found in the qtdemux_parse_theora_extension function.

  • Can CVE-2024-47606 be exploited remotely?

    Yes, CVE-2024-47606 can potentially be exploited remotely through specially crafted media files.

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