CVE-2022-1924

2022-07-1919:13:35

CWE-122

redhat

www.cve.org

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

29.7%

JSON

DOS / potential heap overwrite in mkv demuxing using lzo decompression. Integer overflow in matroskademux element in lzo 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.

CNA Affected

[
  {
    "product": "GStreamer",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "1.20.3"
      }
    ]
  }
]