DOS / potential heap overwrite in mkv demuxing using zlib decompression. Integer overflow in matroskademux element in gst_matroska_decompress_data function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite. If the libc uses mmap for large chunks, and the OS supports mmap, then it is just a segfault (because the realloc before the integer overflow will use mremap to reduce the size of the chunk, and it will start to write to unmapped memory). However, if using a libc implementation that does not use mmap, or if the OS does not support mmap while using libc, then this could result in a heap overwrite.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | gst-plugins-good1.0 | <Â 1.20.3-1 | gst-plugins-good1.0_1.20.3-1_all.deb |
Debian | 11 | all | gst-plugins-good1.0 | <Â 1.18.4-2+deb11u1 | gst-plugins-good1.0_1.18.4-2+deb11u1_all.deb |
Debian | 10 | all | gst-plugins-good1.0 | <Â 1.14.4-1+deb10u2 | gst-plugins-good1.0_1.14.4-1+deb10u2_all.deb |
Debian | 999 | all | gst-plugins-good1.0 | <Â 1.20.3-1 | gst-plugins-good1.0_1.20.3-1_all.deb |
Debian | 13 | all | gst-plugins-good1.0 | <Â 1.20.3-1 | gst-plugins-good1.0_1.20.3-1_all.deb |