{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2022-1923",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "GStreamer",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "1.20.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-122"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225",
                "url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20220809 [SECURITY] [DLA 3069-1] gst-plugins-good1.0 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2022/08/msg00001.html"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-5204",
                "url": "https://www.debian.org/security/2022/dsa-5204"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "DOS / potential heap overwrite in mkv demuxing using bzip decompression. Integer overflow in matroskademux element in bzip decompression 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."
            }
        ]
    }
}